Contents  on 20 September '17

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. To keep track of what's new each day, watch the Chronology section.

Traffic Report  on 20 September '17

Eight objects reported inside ten LD

Yes, we have visitors today. Eight in total are known to be flying through an imaginary sphere with a radius of ten lunar distances from Earth's center, and two of these are newly discovered intruders within the Earth-Moon system today. Nearest of these is 2017 SR2, which is inside one LD of Earth from 0947 today to 0709 UTC tomorrow, passing us at 0.24 LD at 2028 UTC today. It will pass the Moon tomorrow at 1.02 LD. A little further out, 2017 SM2 is inside one LD of Earth during 0002-1503 UTC today, and inside one LD of the Moon from 1143 UTC today to 0111 UTC tomorrow, passing our planet at 0.81 LD at 0733 UTC and the Moon at 0.83 LD at 1828 UTC today. Today's discovery announcements also include an intruder, 2017 SQ2, that is calculated to have gone by at about 0.5 LD on September 14th

Earth passage I D ~Size Distance Today  Notes
0.24 LD today2017 SR2 6 m  0.24 LD NEW, intruder today, Earth closest at 2028 UTC - MPEC
0.81 LD today2017 SM2 12 m  0.81 LD NEW, intruder today, Earth closest at 0733 UTC, Moon closest 0.83 LD at 1828 UTC - MPEC, DOU
2.45 LD Sept. 172017 RK2 8 m  4.40 to 5.91 LD risk
4.39 LD Sept. 252017 RO16 8 m  9.09 from 10.58 LD NEW, enters ten LD - MPEC
5.76 LD Sept. 222017 RB15 9 m  6.17 from 6.66 LD DOU
6.18 LD Sept. 182017 RX2 17 m  7.18 to 8.95 LD DOU
6.79 LD Sept. 182017 RU2 22 m  7.14 to 7.99 LD risk - DOU
7.86 LD yesterday2017 RG2 44 m  7.87 to 8.19 LD DOU

This report was generated at 1912 UTC with the discoveries of nine close passers. Three, including today's two intruders, appear in the active traffic table above. The others, already departed, are risk-listed 2017 RH16 (MPEC), preliminarily calculated to have passed at 2.2 LD on August 31st (+/- 2.63 hours uncertainty), two risk-listed objects that passed Earth on September 10th: 2017 RN16 (MPEC) at 1.30 LD and 2017 RP16 (MPEC) at 2.19 LD, 2017 RM16 (MPEC) went by at 4.38 LD on the 11th, 2017 SP2 (MPEC) at 5.88 LD on the 17th, and, as mentioned above, risk-listed intruder 2017 SQ2 (MPEC) zoomed by unseen at about 0.5 LD on September 14th. Today's DOU MPEC has first follow-up for five objects in the traffic tables plus continuing follow-up for 2017 RX2 in the tables and first follow-up for departed objects 2017 RS2 and risk-listed 2017 RV2.

Approaching (sorted by 10-LD bubble entry date)
4.75 LD Sept. 262017 RB16 26 m  < 10 LD Sept. 22 - DOU
9.77 LD Sept. 222017 RQ15 21 m  < 10 LD Sept. 22 - DOU
7.87 LD Sept. 291989 VB 389 m  < 10 LD Sept. 25, radar target
0.13 LD Oct. 122012 TC4 15 m  < 10 LD Oct. 5, intruder, radar/NHATS target, risk
8.5   LD Oct. 132005 TE49 15 m  < 10 LD Oct. 11, uncertainty +/- 10.1167 hours, NHATS target
5.77 LD Oct. 22171576 1999 VP11 645 m  < 10 LD Oct. 20



Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting about transient natural objects that approach our planet's gravitational sphere of influence (SOI), which has a radius of about 2.41 LD from Earth's center. This puts a focus on some of the most important and very best NEO observation work, representative of the much larger NEO discovery and tracking effort. Object distances are derived by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 20 September '17

The MPC's NEO Confirmation Page has 63 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 63 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 98 listings on the NEOCP today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 20 September '17

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 33 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2017-S90 - "22:28 UT" - Comet P/2010 P4 = 2017 S1 (WISE)


MPEC 2017-S89 - "19:31 UT" - 2008 EC85 = 2017 SG2

Id. R.D. Matson


MPEC 2017-S88 - "14:29 UT" - 2012 JU4


MPEC 2017-S87 - "14:27 UT" - 2017 FR90


MPEC 2017-S86 - "13:35 UT" - 2017 SR2


<< DOU on 20 Sept. '17 >>  MPEC 2017-S85 - "12:04 UT" - Daily Orbit Update


MPEC 2017-S84 - "03:00 UT" - 2017 SQ2


MPEC 2017-S83 - "02:57 UT" - 2017 SP2


MPEC 2017-S82 - "02:53 UT" - 2017 SM2


MPEC 2017-S81 - "02:50 UT" - 2017 SD2


MPEC 2017-S80 - "02:47 UT" - 2017 RP16


MPEC 2017-S79 - "02:44 UT" - 2017 RO16


MPEC 2017-S78 - "02:41 UT" - 2017 RJ16


MPEC 2017-S77 - "02:38 UT" - 2017 SO2


MPEC 2017-S76 - "02:35 UT" - 2017 SN2


MPEC 2017-S75 - "02:32 UT" - 2017 SL2


MPEC 2017-S74 - "02:29 UT" - 2017 SK2


MPEC 2017-S73 - "02:25 UT" - 2017 SJ2


MPEC 2017-S72 - "02:22 UT" - 2017 SH2


MPEC 2017-S71 - "02:19 UT" - 2017 SG2


MPEC 2017-S70 - "02:16 UT" - 2017 SF2


MPEC 2017-S69 - "02:13 UT" - 2017 SE2


MPEC 2017-S68 - "02:10 UT" - 2017 RS16


MPEC 2017-S67 - "02:07 UT" - 2017 RR16


MPEC 2017-S66 - "02:03 UT" - 2017 RQ16


MPEC 2017-S65 - "02:00 UT" - 2017 RN16


MPEC 2017-S64 - "01:57 UT" - 2017 RM16


MPEC 2017-S63 - "01:53 UT" - 2017 RL16


MPEC 2017-S62 - "01:49 UT" - 2017 RK16


MPEC 2017-S61 - "01:46 UT" - 2017 RH16


MPEC 2017-S60 - "01:43 UT" - 2017 RG16


MPEC 2017-S59 - "01:39 UT" - 2017 RF16


MPEC 2017-S58 - "01:36 UT" - 2017 RE16

Observers  on 20 September '17

A total of 41 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 3 in MPECs 2017-S69, 2017-S76 & 2017-S82 -- 2017 SN2, 2017 SM2, 2017 SE2
H21Astronomical Research Obs. Westfield in Illinois, 26 in MPECs 2017-S58, 2017-S63, 2017-S67, 2017-S72, 2017-S81 & 2017-S85 -- 2017 SH2, 2017 SD2, 2017 RV1, 2017 RU1, 2017 RR16, 2017 RL16, 2017 RK1, 2017 RE16, 2017 QY34, 2017 QX34, 2017 QF18, 2017 PR25, 2017 MM7, 2017 MK8, 2017 MG3, 2017 KL3, 2017 HV3, 2017 HQ49, 2017 AQ19, 2013 PX6, 368565, 276660, 244670, 23187, 213869, 17188
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2017-S76 -- 2017 SN2
T08ATLAS Mauna Loa in Hawaii, 5 in MPECs 2017-S82 & 2017-S85 -- 2017 SM2, 1998 SB15, 242211, 142561, 141874
Z84Calar Alto Schmidt in Spain, 2 in MPECs 2017-S83 & 2017-S90 -- 2017 SP2, P/2017 S1
703Catalina Sky Survey (CSS) in Arizona, 6 in MPECs 2017-S82, 2017-S83, 2017-S84, 2017-S85 & 2017-S86 -- 2017 SR2, 2017 SQ2, 2017 SP2, 2017 SN2, 2017 SM2, 2004 TD10
U78Cedar Glen Obs. in southern California, 1 in MPEC 2017-S85 -- 3122
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 9 in MPECs 2017-S59, 2017-S60, 2017-S68, 2017-S69, 2017-S73, 2017-S74, 2017-S75, 2017-S78 & 2017-S80 -- 2017 SL2, 2017 SK2, 2017 SJ2, 2017 SE2, 2017 RS16, 2017 RP16, 2017 RJ16, 2017 RG16, 2017 RF16
850Cordell-Lorenz Obs. in Tennessee, 2 in MPECs 2017-S76 & 2017-S82 -- 2017 SN2, 2017 SM2
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2017-S76 -- 2017 SN2
J27El Guijo Obs. in Spain, 5 in MPEC 2017-S85 -- 2017 PJ26, 2014 YC15, 90075, 496018, 326388
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 6 in MPECs 2017-S77, 2017-S80, 2017-S82, 2017-S84, 2017-S88 & 2017-S90 -- 2017 SQ2, 2017 SO2, 2017 SM2, P/2017 S1, 2017 RP16, 2012 JU4
K88GINOP-KHK in Hungary, 1 in MPEC 2017-S82 -- 2017 SM2
J95Great Shefford Obs. in England, 3 in MPECs 2017-S82, 2017-S83 & 2017-S85 -- 2017 SP2, 2017 SM2, 2017 RE15
H06#M. Suzuki in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2017-S76 -- 2017 SN2
Q62|Sergio Foglia in Italy via iTelescope Obs. Siding Spring in New South Wales, 3 in MPECs 2017-S69, 2017-S76 & 2017-S85 -- 2017 SN2, 2017 SE2, 2017 RV2
P93JAXA Space Tracking & Communications Center (JAXA STCC) in Japan, 2 in MPECs 2017-S82 & 2017-S83 -- 2017 SP2, 2017 SM2
168Kourovskaya Obs. in Russia, 1 in MPEC 2017-S85 -- 3122
W85LCOGT Cerro Tololo A in Chile, 3 in MPECs 2017-S68, 2017-S74 & 2017-S77 -- 2017 SO2, 2017 SK2, 2017 RS16
K91LCOGT Sutherland A in South Africa, 1 in MPEC 2017-S60 -- 2017 RG16
K93LCOGT Sutherland C in South Africa, 2 in MPECs 2017-S69 & 2017-S85 -- 2017 SE2, 2004 TD10
568_Marco Micheli on Mauna Kea in Hawaii, 15 in MPECs 2017-S58, 2017-S61, 2017-S62, 2017-S63, 2017-S64, 2017-S65, 2017-S66, 2017-S67, 2017-S68, 2017-S70, 2017-S71, 2017-S73, 2017-S79, 2017-S80 & 2017-S81 -- 2017 SJ2, 2017 SG2, 2017 SF2, 2017 SD2, 2017 RS16, 2017 RR16, 2017 RQ16, 2017 RP16, 2017 RO16, 2017 RN16, 2017 RM16, 2017 RL16, 2017 RK16, 2017 RH16, 2017 RE16
K96MPC code K96, 1 in MPEC 2017-S85 -- 3122
474Mt. John Obs. in New Zealand, 18 in MPECs 2017-S60, 2017-S62, 2017-S70, 2017-S71, 2017-S78, 2017-S85 & 2017-S86 -- 2017 SR2, 2017 SM2, 2017 SG2, 2017 SF2, 2017 RX2, 2017 RK16, 2017 RJ16, 2017 RG16, 2017 RB16, 2017 QX34, 2017 QW34, 2017 QT17, 2017 QK18, 2017 QJ33, 2017 OX18, 2017 OT68, 2017 NU6, 2017 JU2
J43Oukaimeden Obs. in Morocco, 4 in MPEC 2017-S85 -- 2017 RK1, 2017 OG68, 496018, 9202
F51Pan-STARRS 1 (PS1) in Hawaii, 32 in MPECs 2017-S58, 2017-S59, 2017-S60, 2017-S61, 2017-S62, 2017-S63, 2017-S64, 2017-S65, 2017-S66, 2017-S67, 2017-S68, 2017-S69, 2017-S70, 2017-S71, 2017-S72, 2017-S73, 2017-S74, 2017-S75, 2017-S77, 2017-S78, 2017-S79, 2017-S80, 2017-S81, 2017-S83 & 2017-S85 -- 2017 SP2, 2017 SO2, 2017 SL2, 2017 SK2, 2017 SJ2, 2017 SH2, 2017 SG2, 2017 SF2, 2017 SE2, 2017 SD2, 2017 RW2, 2017 RU, 2017 RS16, 2017 RR16, 2017 RQ16, 2017 RP16, 2017 RO16, 2017 RN16, 2017 RM16, 2017 RL16, 2017 RK16, 2017 RK1, 2017 RJ16, 2017 RH16, 2017 RG16, 2017 RF16, 2017 RE16, 2017 QF2, 2016 GA222, 2012 HN13, 285263, 11500
H23Pear Tree Obs. in Florida, 1 in MPEC 2017-S85 -- 411201
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 9 in MPEC 2017-S85 -- 2017 RV1, 2017 PJ26, 2017 OP68, 2017 MY3, 2016 AA9, 2014 YC15, 2014 CD13, 2004 TQ13, 2004 RE84
Z38Picoto Obs., 1 in MPEC 2017-S85 -- 3122
W98Polonia Obs. in Chile, 1 in MPEC 2017-S85 -- 2017 MY3
J53Posadas Obs. in Spain, 2 in MPEC 2017-S85 -- 90075, 3122
L04ROASTERR-1 in Romania, 1 in MPEC 2017-S82 -- 2017 SM2
K61Rokycany Obs. in the Czech Republic, 2 in MPECs 2017-S82 & 2017-S84 -- 2017 SQ2, 2017 SM2
K14Sencelles Obs. in Spain, 2 in MPEC 2017-S85 -- 2017 RL, 2017 PJ26
W88!program code "!" (10) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-S76 -- 2017 SN2
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-S85 -- 496005
Y00SONEAR in Brazil, 2 in MPECs 2017-S76 & 2017-S85 -- 2017 SN2, 16657
691Spacewatch 0.9m telescope in Arizona, 7 in MPECs 2017-S59, 2017-S68, 2017-S69, 2017-S72, 2017-S73, 2017-S74 & 2017-S75 -- 2017 SL2, 2017 SK2, 2017 SJ2, 2017 SH2, 2017 SE2, 2017 RS16, 2017 RF16
291Spacewatch 1.8m telescope in Arizona, 8 in MPECs 2017-S58, 2017-S61, 2017-S63, 2017-S66, 2017-S67, 2017-S77 & 2017-S85 -- 2017 SO2, 2017 RR16, 2017 RQ16, 2017 RL16, 2017 RH16, 2017 RE16, 2017 PV26, 2015 TM237
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2017-S82 -- 2017 SM2
I52Steward Obs. Mt. Lemmon Station in Arizona, 23 in MPECs 2017-S64, 2017-S67, 2017-S73, 2017-S74, 2017-S81, 2017-S82, 2017-S83, 2017-S84, 2017-S85 & 2017-S86 -- 2017 SR2, 2017 SQ2, 2017 SP2, 2017 SM2, 2017 SK2, 2017 SJ2, 2017 SD2, 2017 RX15, 2017 RX1, 2017 RW2, 2017 RV2, 2017 RU15, 2017 RS2, 2017 RR16, 2017 RR15, 2017 RQ15, 2017 RM16, 2017 RG2, 2017 RE15, 2017 RB15, 2017 PU25, 2017 PA27, 471956
926Tenagra II Obs. in Arizona, 16 in MPECs 2017-S63, 2017-S69, 2017-S72, 2017-S73, 2017-S75, 2017-S76, 2017-S79, 2017-S80, 2017-S81, 2017-S82, 2017-S83, 2017-S84, 2017-S85 & 2017-S87 -- 2017 SQ2, 2017 SP2, 2017 SN2, 2017 SM2, 2017 SL2, 2017 SJ2, 2017 SH2, 2017 SE2, 2017 SD2, 2017 RU2, 2017 RQ15, 2017 RP16, 2017 RO16, 2017 RL16, 2017 NU6, 2017 FR90
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 20 September '17

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2017 SQ2JPL Sentry05102068-206819.291e-08-7.48-7.480JPL: Computed at 21:49 Sept. 19th Pacific time based on 21 observations spanning 1.6566 days (2017-Sep-18.34652 to 2017-Sep-20.003108). Diameter approximately 0.024 km. from weighted mean H=25.79.
2017 RP16JPL Sentry05102065-2112113.965503e-06-6.65-7.120JPL: Computed at 22:03 Sept. 19th Pacific time based on 13 observations spanning 3.9597 days (2017-Sep-15.41118 to 2017-Sep-19.37083). Diameter approximately 0.012 km. from weighted mean H=27.20.
2017 RN16JPL Sentry05102076-2117448.598682e-05-6.34-6.800JPL: Computed at 21:07 Sept. 19th Pacific time based on 9 observations spanning 3.0136 days (2017-Sep-15.40527 to 2017-Sep-18.418869). Diameter approximately 0.005 km. from weighted mean H=29.07.
2017 RH16JPL Sentry07002040-21162372.45533749e-05-4.86-5.290JPL: Computed at 23:28 Sept. 19th Pacific time based on 9 observations spanning 5.0759 days (2017-Sep-13.33537 to 2017-Sep-18.411235). Diameter approximately 0.025 km. from weighted mean H=25.65.
2017 RZ15JPL Sentry15552071-2117295.0389714e-05-5.66-6.000JPL: Computed at 08:23 today Pacific time based on 9 observations spanning 2.8111 days (2017-Sep-15.41445 to 2017-Sep-18.2255). Diameter approximately 0.013 km. from weighted mean H=27.15.
2017 RX2JPL Sentry1707R E M O V E DJPL: Risk listing removed at 1633 UTC today.
2017 RV2JPL Sentry15552082-2117400.000111659138-4.90-5.710JPL: Computed at 08:48 today Pacific time based on 109 observations spanning 5.8156 days (2017-Sep-14.43497 to 2017-Sep-20.25056). Diameter approximately 0.020 km. from weighted mean H=26.19.
NEODyS15552071-2117597.19e-05-5.09-5.510NEODyS: "Based on 102 optical observations (of which 2 are rejected as outliers) from 2017-09-14.436 to 2017-09-17.506."
2017 RU2JPL Sentry15552093-209313.528e-07-7.16-7.160JPL: Computed at 08:00 today Pacific time based on 37 observations spanning 5.0737 days (2017-Sep-14.41954 to 2017-Sep-19.49324). Diameter approximately 0.023 km. from weighted mean H=25.84.
2015 HV182NEODyS15552018-21161202.89e-08-5.28-6.350NEODyS: "Based on 9 optical observations (of which 0 are rejected as outliers) from 2015-04-18.277 to 2015-04-19.276."

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology  on 20 September '17

Times are UTC for when items were noted or added by The Tracking News.

2303Grabbed MPEC 2017-S90 - Comet P/2010 P4 = 2017 S1 (WISE) - see above
2021Grabbed MPEC 2017-S89 - 2008 EC85 = 2017 SG2 - see above
1912Generated Traffic Report
1707Noted that JPL Sentry has removed 2017 RX2 as an impact risk - see above
1555Noted that NEODyS has updated its 2015 HV182 risk assessment - see above
Noted that JPL Sentry has updated its 2017 RU2 risk assessment - see above
Noted that JPL Sentry has updated its 2017 RV2 risk assessment - see above
Noted that NEODyS has posted 2017 RV2 as an impact risk - see above
Noted that JPL Sentry has updated its 2017 RZ15 risk assessment - see above
Grabbed MPEC 2017-S85 - Daily Orbit Update - see above
Grabbed MPEC 2017-S86 - 2017 SR2 - see above
Grabbed MPEC 2017-S87 - 2017 FR90 - see above
Grabbed MPEC 2017-S88 - 2012 JU4 - see above
0700Noted that JPL Sentry has posted 2017 RH16 as an impact risk - see above
0510Noted that JPL Sentry has posted 2017 RN16 as an impact risk - see above
Noted that JPL Sentry has posted 2017 RP16 as an impact risk - see above
Noted that JPL Sentry has posted 2017 SQ2 as an impact risk - see above
0433Grabbed MPEC 2017-S58 - 2017 RE16 - see above
Grabbed MPEC 2017-S59 - 2017 RF16 - see above
Grabbed MPEC 2017-S60 - 2017 RG16 - see above
Grabbed MPEC 2017-S61 - 2017 RH16 - see above
Grabbed MPEC 2017-S62 - 2017 RK16 - see above
Grabbed MPEC 2017-S63 - 2017 RL16 - see above
Grabbed MPEC 2017-S64 - 2017 RM16 - see above
Grabbed MPEC 2017-S65 - 2017 RN16 - see above
Grabbed MPEC 2017-S66 - 2017 RQ16 - see above
Grabbed MPEC 2017-S67 - 2017 RR16 - see above
Grabbed MPEC 2017-S68 - 2017 RS16 - see above
Grabbed MPEC 2017-S69 - 2017 SE2 - see above
Grabbed MPEC 2017-S70 - 2017 SF2 - see above
Grabbed MPEC 2017-S71 - 2017 SG2 - see above
Grabbed MPEC 2017-S72 - 2017 SH2 - see above
Grabbed MPEC 2017-S73 - 2017 SJ2 - see above
Grabbed MPEC 2017-S74 - 2017 SK2 - see above
Grabbed MPEC 2017-S75 - 2017 SL2 - see above
Grabbed MPEC 2017-S76 - 2017 SN2 - see above
Grabbed MPEC 2017-S77 - 2017 SO2 - see above
Grabbed MPEC 2017-S78 - 2017 RJ16 - see above
Grabbed MPEC 2017-S79 - 2017 RO16 - see above
Grabbed MPEC 2017-S80 - 2017 RP16 - see above
Grabbed MPEC 2017-S81 - 2017 SD2 - see above
Grabbed MPEC 2017-S82 - 2017 SM2 - see above
Grabbed MPEC 2017-S83 - 2017 SP2 - see above
Grabbed MPEC 2017-S84 - 2017 SQ2 - see above