2007-12-24 Tracking News

Contents on 24 December '07

IAU Minor Planet Center
- NEOCP Activity -- none
- New MPECs -- five MPECs
- Observers -- 45 observing facilities
Impact Risk Monitoring -- nothing to report
Chronology

Resources:

Consolidated Risk Tables - the CRT page
Earth's Busy Neighborhood Traffic Report
Ephemerides for risk-rated and nearby objects
Old & new CRT Archive
Old News Archive & Small Objects Archive

The latest A/CC news is available via framed access, RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

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 this year through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity on 24 December '07

Not active

The Minor Planet Center's NEO discovery Confirmation Page (NEOCP) was not active on this day.

New MPECs on 24 December '07

Minor Planet Electronic Circulars

There were five MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2007-Y43 time-stamped "07:07 UT" - Daily Orbit Update - see below
MPEC 2007-Y44 time-stamped "15:23 UT" - Comet C/2007 W1 (Boattini) - see below
MPEC 2007-Y45 time-stamped "15:28 UT" - Comet C/2007 W3 (LINEAR) - see below
MPEC 2007-Y46 time-stamped "15:31 UT" - Comet C/2007 Y1 (LINEAR) - see below
MPEC 2007-Y47 time-stamped "15:55 UT" - Observations of Comets

MPEC 2007-Y47 - "15:55 UT" - Observations of Comets

PK07V010 P/2007 V1 (Larson) from Vega del Thader Obs. (Dec. 14.96p2), Nazaret Obs. (Dec. 17.88-92p3), and Montcabre Obs. (Dec. 18.87-88p2)
PK07T060 P/2007 T6 (Catalina) from the Catalina Sky Survey (CSS) (Dec. 15.42-44p3), Ageo Obs. (Dec. 18.76-77p3), the Mt. Lemmon Survey (MLS) (Dec. 19.41-42p4), and KLENOT (Dec. 21.03-05p15)
CK07T050 C/2007 T5 (Gibbs) from CSS (Dec. 15.39-41p4), LINEAR (Dec. 20.26-32p5), and KLENOT (Dec. 21.01-02p4)
PK07T020 P/2007 T2 (Kowalski) from Nazaret Obs. (Dec. 16.14-15p2) and Montcabre Obs. (Dec. 19.03p2 & 24.20-23p3)
CK07S020 C/2007 S2 (Lemmon) from Ageo Obs. (Dec. 9.74-75p2) and Schiaparelli Obs. (Dec. 19.13p1 & 19.20p1)
CK07M020 C/2007 M2 (Catalina) from Ageo Obs. (Dec. 15.83p2) and LINEAR (Dec. 19.46-51p4)
PK07H010 P/2007 H1 (McNaught) from La Vara Obs. (Nov. 7.93p3, 9.92-93p8, 10.92p3, 11.89-90p3, 15.94p3, 17.89p2, 28.88p3, Dec. 1.79-80p3, 4.85p3, 5.93-94p3, 6.93p3, 11.88p3 & 16.86p3), Ageo Obs. (Dec. 9.49-50p2), Cantabria Obs. (Dec. 13.94-95p2), and CAST Obs. (Dec. 21.75p1)
CK07E010 C/2007 E1 (Garradd) from La Vara Obs. (Nov. 9.97p1, 11.02p1, 12.99p1, 15.97-98p2, 28.94p2, Dec. 1.89p2 & 4.87-88p2) and MLS (Dec. 17.32-33p4)
PK07C020 P/2007 C2 (Catalina) from LONEOS (Dec. 18.37-45p4) and Schiaparelli Obs. (Dec. 19.12p1 & 19.19p1)
CK06W030 C/2006 W3 (Christensen) from Montana Blanca Obs. (Dec. 17.83-84p3), Monte Deva Obs. (Dec. 18.00-01p5 & 22.03-04p4), LINEAR (Dec. 19.26-31p5), Balzaretto Obs. (Dec. 19.95-97p3), San Vito Obs. (Dec. 20.85-88p3), Montcabre Obs. (Dec. 23.91-92p3), and La Fecha Obs. (Dec. 24.06-08p2)
CK06S050 C/2006 S5 (Hill) from Vega del Thader Obs. (Dec. 15.05p4), Chante-Perdrix Obs. (Dec. 17.94-95p2), Schiaparelli Obs. (Dec. 19.11p1 & 19.19p1), CSS (Dec. 20.28-30p4), and Monte Deva Obs. (Dec. 23.00-01p5)
CK06O02F C/2006 OF2 (Broughton) from La Vara Obs. (Nov. 7.89-90p3, 9.91-92p3, 10.91p3, 11.86-87p3, 12.89-90p3, 15.92p3, 17.81-82p3, 22.82-83p3, 28.87p2, Dec. 1.78-79p3, 4.79p3, 6.81p3, 12.86p3, 13.85-86p3, 16.84-85p3 & 23.80p3), CSS (Dec. 19.06-08p4), and CAST Obs. (Dec. 21.74p1)
CK05L030 C/2005 L3 (McNaught) from Ageo Obs. (Nov. 3.40p2 & 25.35p2)
0195 195P from Schiaparelli Obs. (Dec. 18.99p1, 19.08p1, 20.99p1 & 21.06p1)
0194 194P from San Marcello Pistoiese Obs. (Dec. 13.74-77p3), Table Mtn. Obs. (Dec. 15.41-43p4), Ageo Obs. (Dec. 15.62p3), and Nazaret Obs. (Dec. 17.00-03p3)
0191P 191P/McNaught from La Vara Obs. (Nov. 7.98-99p3, 10.01-02p3, 10.93p3, 12.94-95p3, 15.99-00p3, 25.05p2, 28.95-96p3, Dec. 1.92p3 & 4.89-90p3)
0190P 190P/Mueller from La Vara Obs. (Nov. 12.96p3 & Dec. 4.98-99p3), Schiaparelli Obs. (Dec. 19.01p1 & 19.09p1), and LINEAR (Dec. 20.13-18p3)
0188P 188P/LINEAR-Mueller from La Vara Obs. (Nov. 7.94-95p3, 9.94p3, 10.94-95p3, 11.87p3, 12.92-93p3, 15.95-96p3, 17.85p3, Dec. 1.81p3, 6.96-97p3 & 23.81-82p3)
0179P 179P/Jedicke from Schiaparelli Obs. (Nov. 17.00p1 & 17.05p1) and Ageo Obs. (Dec. 15.56-57p3)
0173P 173P/Mueller 5 from LINEAR (Dec. 14.32-35p3 & 20.23-26p3) and Schiaparelli Obs. (Dec. 21.11p1 & 21.22p1)
0156P 156P/Russell-LINEAR from CSS (Nov. 20.46-48p4 & Dec. 18.34-36p4)
0143P 143P/Kowal-Mrkos from the Spacewatch 0.9m telescope (Dec. 20.37-40p3) and Schiaparelli Obs. (Dec. 21.08p1 & 21.17p1)
0124P 124P/Mrkos from La Vara Obs. (Nov. 11.06-08p3, Dec. 2.06p3 & 5.02p1)
0117P 117P/Helin-Roman-Alu 1 from La Vara Obs. (Nov. 7.96-97p3, 9.95-96p3, 10.96p3, 15.98p3, 25.03-04p2, 28.89-90p3, Dec. 1.83p3, 4.91p3, 7.00-01p3 & 23.84-85p3)
0110P 110P/Hartley 3 from La Vara Obs. (Nov. 11.10p3, 12.97-98p3, 17.94-95p3, 28.97-98p3, Dec. 2.09-10p3, 4.94-95p2, 5.96-97p3, 7.02-03p3, 12.03-04p3 & 13.01-02p3), Vega del Thader Obs. (Dec. 14.97-98p4), Nazaret Obs. (Dec. 18.03-04p3), Monte Deva Obs. (Dec. 18.03-04p5), Bocholt Obs. (Dec. 18.83-86p8), Montcabre Obs. (Dec. 18.93p3), San Vito Obs. (Dec. 18.95-96p3), Schiaparelli Obs. (Dec. 19.02p1 & 19.09p1), LINEAR (Dec. 20.13-17p4), and CAST Obs. (Dec. 21.81p1)
0108P 108P/Ciffreo from Ageo Obs. (Dec. 11.74p2) and LINEAR (Dec. 19.35-39p4)
0093P 93P/Lovas 1 from La Vara Obs. (Nov. 7.00p3, 9.98-99p8, 10.97p3, 11.88p3, 12.91p3, 15.95p3, 17.90-91p3, 28.91p3, Dec. 1.82p3, 4.92-93p3, 5.98p3, 6.95-96p3, 12.92p3, 13.88p3 & 16.88-89p3), Vega del Thader Obs. (Dec. 14.88-90p12), Ageo Obs. (Dec. 15.43-44p3), Irmtraut Obs. (Dec. 15.89-90p3), Hamamatsu-Yuto Obs. (Dec. 16.43-44p3), Vicksburg Obs. (Dec. 18.03-04p2 & 21.11p2), Ottmarsheim Obs. (Dec. 20.80-82p3), CAST Obs. (Dec. 21.75p1), Monte Deva Obs. (Dec. 21.97-98p4, 22.95p4 & 23.90-91p5), and Montcabre Obs. (Dec. 23.85-87p3)
0079P 79P/du Toit-Hartley from LONEOS (Dec. 18.36-44p4) and Schiaparelli Obs. (Dec. 21.10p1 & 21.19p1)
0074P 74P/Smirnova-Chernykh from Monte Deva Obs. (Dec. 18.02-03p3) and Schiaparelli Obs. (Dec. 19.03p1 & 19.10p1)
0070P 70P/Kojima from Ageo Obs. (Dec. 8.82p2), Lulin Minor Bodies Tracking (LIMIT) (Dec. 17.87-88p3), and LINEAR (Dec. 20.46-51p5)
0065P 65P/Gunn from La Vara Obs. (Dec. 2.04-05p3 & 4.00p3)
0050P 50P/Arend from La Vara Obs. (Nov. 8.05-06p3, 9.99-00p3, 10.98-99p3, 13.06-07p3, 16.00-01p3, 28.92-93p3, Dec. 1.87p3, 4.83-84p3, 5.99-00p3, 11.95-96p3, 16.90-91p3 & 23.89p1), Panker Obs. (Dec. 4.75-76p2), Vega del Thader Obs. (Dec. 14.93-94p7), Siegen Obs. (Dec. 17.01p1), Monte Deva Obs. (Dec. 17.94-95p4), Vicksburg Obs. (Dec. 18.06-07p2 & 24.12p2), San Vito Obs. (Dec. 19.82-83p2), Ottmarsheim Obs. (Dec. 20.83-85p3), CAST Obs. (Dec. 21.76p1), and Montcabre Obs. (Dec. 23.84p2)
0046P 46P/Wirtanen from La Vara Obs. (Nov. 17.82p2, Dec. 1.77p3, 4.78p3, 6.79-80p3, 12.84-85p3, 13.84p3, 16.83p3 & 23.77-78p3), AAAA Buenos Aires Obs. (Dec. 6.06-08p2), Irmtraut Obs. (Dec. 16.73-75p3), Linceo Obs. (Dec. 17.74-76p3), Vicksburg Obs. (Dec. 18.00-01p2, 21.01p2 & 24.01-02p2), and CAST Obs. (Dec. 21.74p1)
0029P 29P/Schwassmann-Wachmann 1 from La Vara Obs. (Nov. 8.07p3, 10.04-05p3, 11.00-01p3, 13.00-01p3, 25.00-01p3, 28.00p3, Dec. 2.01-02p3, 4.96-97p3, 5.91-92p3, 6.98-99p3, 12.00-01p3, 12.00p3 & 16.94-96p2), Panker Obs. (Dec. 1.92-93p3), Vega del Thader Obs. (Dec. 15.01-03p7), LINEAR (Dec. 15.27-32p5 & 20.14-19p5), Bocholt Obs. (Dec. 18.87-92p4), Montcabre Obs. (Dec. 18.91-92p3), Schiaparelli Obs. (Dec. 19.03p1 & 19.17p1), Capannoli Obs. (Dec. 20.01-02p2), and CAST Obs. (Dec. 21.82p1)
0026P 26P/Grigg-Skjellerup from Schiaparelli Obs. (Dec. 19.17p1, 19.21p1, 21.16p1 & 21.21p1)
0017P 17P/Holmes from Ceccano Obs. (Nov. 4.95-97p4 & 7.91-94p4), Moletai Obs. (Nov. 5.68-73p6), La Vara Obs. (Nov. 6.00p3, 7.87p3, 10.00p3, 10.99p3, 12.88p3, 14.89p3, 15.91p3, 17.93p3, 20.93p3, 24.99-00p3, 29.01-02p3, Dec. 1.85p3, 4.81p3, 5.87p3, 6.82p3, 11.99p3, 12.97p3, 13.95-96p3, 16.93-94p3 & 23.90-91p3), Corner Obs. (Nov. 11.97p1, 27.87p1, Dec. 1.93p1, 14.03-04p3 & 15.98p1), Ageo Obs. (Nov. 25.47p3), Panker Obs. (Nov. 26.92-93p4, Dec. 1.88-89p5, 3.76p3 & 4.72-73p4), Irmtraut Obs. (Dec. 15.99-01p3), Siegen Obs. (Dec. 17.02-03p3), Hamamatsu-Yuto Obs. (Dec. 17.49-53p7), Chante-Perdrix Obs. (Dec. 17.75-76p3, 18.88-89p3, 19.89-90p3 & 20.77-78p3), Nazaret Obs. (Dec. 17.96-99p3 & 23.89p2), Monte Deva Obs. (Dec. 17.96-97p5, 21.99-00p4, 23.03-04p4 & 23.96-97p5), Red Barn Obs. (Dec. 18.09-11p4), Stammersdorf Obs. (Dec. 18.76-77p4), Montcabre Obs. (Dec. 18.83-84p3 & 23.76-77p3), Petit Jean Mtn. South Obs. (PJMSO) (Dec. 19.05-06p8 & 24.01-04p9), Atlante Obs. (Dec. 19.86-89p3), San Vito Obs. (Dec. 20.84-85p2), Ottmarsheim Obs. (Dec. 20.87-88p3), and CAST Obs. (Dec. 21.76p1)
0008P 8P/Tuttle from La Vara Obs. (Nov. 29.06p3, Dec. 1.86p3, 4.82-83p3, 5.87-88p3, 6.86p3, 11.96-97p3, 12.88p3, 13.94p3, 16.92-93p3 & 23.88p3), Ageo Obs. (Dec. 9.40p3), Irmtraut Obs. (Dec. 15.95p3), Siegen Obs. (Dec. 16.99p3 & 17.77-78p3), the SZTE Asteroid Program (SZTE) (Dec. 17.66-67p8), Chante-Perdrix Obs. (Dec. 17.78-80p4 & 20.76p3), Monte Deva Obs. (Dec. 17.99-00p5, 22.01-02p5, 23.04-05p5 & 23.93-94p5), Stammersdorf Obs. (Dec. 18.73-75p7), Montcabre Obs. (Dec. 18.80-82p3 & 23.78p3), San Vito Obs. (Dec. 19.72p3), Atlante Obs. (Dec. 19.90-91p3), Nazaret Obs. (Dec. 20.86-87p3 & 23.86-87p3), Ottmarsheim Obs. (Dec. 20.94-96p3), Schiaparelli Obs. (Dec. 21.02p2), CAST Obs. (Dec. 21.76p1), Montana Blanca Obs. (Dec. 22.86-87p3), RAS Obs. Mayhill (Dec. 23.20p2), and La Fecha Obs. (Dec. 23.85-87p6)
0007P 7P/Pons-Winnecke from SZTE (Dec. 17.18-20p3 & 19.18-20p3)
0004P 4P/Faye from MLS (Nov. 2.51-52p4) and CSS (Dec. 16.47-49p4)

MPEC 2007-Y46 - "15:31 UT" - Comet C/2007 Y1 (LINEAR)

CK07Y010 C/2007 Y1 (LINEAR) (i=110.2°, q=3.290 AU, TP=2008 Mar. 29.187 TT) from LINEAR (Dec. 18.44-50p8), Ageo Obs. (Dec. 18.80-81p2), Schiaparelli Obs. (Dec. 19.14p1 & 19.22p1), and CSS (Dec. 19.47-48p4)

MPEC 2007-Y45 - "15:28 UT" - Comet C/2007 W3 (LINEAR)

CK07W030 C/2007 W3 (LINEAR) (i=78.7°, q=1.777 AU, TP=2008 June 2.797 TT) from SZTE (Dec. 19.71-73p6) and LINEAR (Dec. 20.22p1 & 20.26-27p2)

MPEC 2007-Y44 - "15:23 UT" - Comet C/2007 W1 (Boattini)

CK07W010 C/2007 W1 (Boattini) (i=9.9°, q=0.851 AU, TP=2008 June 24.971 TT) from SZTE (Dec. 17.20-21p4), Schiaparelli Obs. (Dec. 19.16p1 & 19.23p1), and PJMSO (Dec. 19.47p6)

<< DOU on 24 Dec. '07 >> MPEC 2007-Y43 - "07:07 UT" - Daily Orbit Update

Observations of recently (no longer) risk-listed objects
K07Y00Z 2007 YZ (arc=4 days, H=19.8 ~371m) from Schiaparelli Obs. (Dec. 21.13-14p3)
Observations of other objects
K07Y01X 2007 YX1 (Q=4.542 AU, arc=61 days, H=17.2 ~1.23 km) from MLS (Dec. 19.12-14p4)
K07Y01F 2007 YF1 (arc=7 days, H=18.6 ~645m) from Desert Moon Obs. (Dec. 23.37-40p3)
K07Y00H 2007 YH (arc=6 days, H=20.0 ~339m) from Schiaparelli Obs. (Dec. 21.12-13p4)
K07X20J 2007 XJ20 (arc=10 days, H=18.3 ~741m) from McDonald Obs. (Dec. 23.22-23p2)
K07X16H 2007 XH16 (arc=15 days, H=19.6 ~407m) from Wildberg Obs. (Dec. 23.79-80p6) and Andrew Lowe via RAS Obs. Mayhill (Dec. 24.18p4)
K07X03T 2007 XT3 (arc=19 days, H=21.5 ~170m) from Wildberg Obs. (Dec. 23.77p5)
K07W55F 2007 WF55 (arc=23 days, H=19.1 ~513m) from La Fecha Obs. (Dec. 23.90-92p2 & 24.01p1)
K07VI3R 2007 VR183 (Q=4.353 AU, arc=100 days, H=17.3 ~1.17 km) from McDonald Obs. (Dec. 23.20-21p3)
K07U03W 2007 UW3 (arc=65 days, H=19.4 ~446m) from Desert Moon Obs. (Dec. 23.26-33p3)
K07T15G 2007 TG15 (arc=76 days, H=19.6 ~407m) from McDonald Obs. (Dec. 23.17-18p3)
K07RE7T 2007 RT147 (arc=102 days, H=18.2 ~776m) from Desert Moon Obs. (Dec. 23.11-15p3)
K07L32R 2007 LR32 (arc=212 days, H=17.2 ~1.23 km) from McDonald Obs. (Dec. 23.08-10p3)
K03Y94Q 2003 YQ94 (Q=4.292 AU, arc=2 opp, H=17.8 ~933m) from Desert Moon Obs. (Dec. 23.05-09p3)
K03A01D 2003 AD1 (arc=3 opp, H=18.2 ~776m) from CSS (Dec. 19.40-43p4)
K02X04Y 2002 XY4 (i=43.1°, arc=3 opp, H=19.0 ~537m) from Schiaparelli Obs. (Dec. 21.04p5)
K01P09K 2001 PK9 (arc=4 opp, H=17.9 ~891m) from MLS (Dec. 19.47-49p4)
G4184 164184 2004 BF68 from MLS (Dec. 19.27-30p4)
G3249 163249 2002 GT from MLS (Dec. 19.48-49p4)
G2004 162004 1991 VE from McDonald Obs. (Dec. 23.14-16p3)
F4589 154589 2003 MX2 from MLS (Dec. 19.40-42p4)
E3651 143651 2003 QO104 from MLS (Dec. 19.20-23p4)
68359 68359 2001 OZ13 from CSS (Dec. 19.33-35p4)
54401 54401 2000 LM from McDonald Obs. (Dec. 23.24-26p3)
35107 35107 1991 VH from CSS (Dec. 20.50-54p8)
22099 22099 2000 EX106 from CSS (Dec. 19.41-43p4)
09172 9172 Abhramu (1989 OB) from CSS (Dec. 20.28-30p4)
04503 4503 Cleobulus (1989 WM) from CSS (Dec. 20.50-52p4)
04450 4450 Pan (1987 SY) from CSS (Dec. 20.39-41p4)
03553 3553 Mera (1985 JA) from McDonald Obs. (Dec. 23.11-12p3)
01862 1862 Apollo (1932 HA) from MLS (Dec. 19.34-36p4)

Observers on 24 December '07

A total of 45 observing facilities appeared in this day's MPECs.

Code	Observer / observatory
`834`	AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2007-Y47 -- 46P
`349`	Ageo Obs. in Japan, 13 in MPECs 2007-Y46 & 2007-Y47 -- C/2007 Y1, P/2007 T6, C/2007 S2, C/2007 M2, P/2007 H1, C/2005 L3, 194P, 179P, 108P, 93P, 70P, 17P, 8P
`J51`	Atlante Obs. in the Canary Islands, 2 in MPEC 2007-Y47 -- 17P, 8P
`A81`	Balzaretto Obs. in Italy, 1 in MPEC 2007-Y47 -- C/2006 W3
`B48`	Bocholt Obs. in Germany, 2 in MPEC 2007-Y47 -- 110P, 29P
`235`	CAST Obs. in Italy, 9 in MPEC 2007-Y47 -- P/2007 H1, C/2006 OF2, 110P, 93P, 50P, 46P, 29P, 17P, 8P
`J96`	Cantabria Obs. in Spain, 1 in MPEC 2007-Y47 -- P/2007 H1
`B09`	Capannoli Obs. in Italy, 1 in MPEC 2007-Y47 -- 29P
`703`	Catalina Sky Survey (CSS) in Arizona, 14 in MPECs 2007-Y43, 2007-Y46 & 2007-Y47 -- C/2007 Y1, P/2007 T6, C/2007 T5, C/2006 S5, C/2006 OF2, 2003 AD1, 68359, 35107, 22099, 9172, 4503, 4450, 156P, 4P
`470`	Ceccano Obs. in Italy, 1 in MPEC 2007-Y47 -- 17P
`A77`	Chante-Perdrix Obs. in France, 3 in MPEC 2007-Y47 -- C/2006 S5, 17P, 8P
`B50`	Corner Obs. in Germany, 1 in MPEC 2007-Y47 -- 17P
`448`	Desert Moon Obs. in New Mexico, 4 in MPEC 2007-Y43 -- 2007 YF1, 2007 UW3, 2007 RT147, 2003 YQ94
`379`	Hamamatsu-Yuto Obs. in Japan, 2 in MPEC 2007-Y47 -- 93P, 17P
`A21`	Irmtraut Obs. in Germany, 4 in MPEC 2007-Y47 -- 93P, 46P, 17P, 8P
`246`	KLENOT in the Czech Republic, 2 in MPEC 2007-Y47 -- P/2007 T6, C/2007 T5
`704`	LINEAR in New Mexico, 11 in MPECs 2007-Y45, 2007-Y46 & 2007-Y47 -- C/2007 Y1, C/2007 W3, C/2007 T5, C/2007 M2, C/2006 W3, 190P, 173P, 110P, 108P, 70P, 29P
`699`	LONEOS in Arizona, 2 in MPEC 2007-Y47 -- P/2007 C2, 79P
`J34`	La Fecha Obs. in Spain, 3 in MPECs 2007-Y43 & 2007-Y47 -- 2007 WF55, C/2006 W3, 8P
`J38`	La Vara Obs. in Spain, 16 in MPEC 2007-Y47 -- P/2007 H1, C/2007 E1, C/2006 OF2, 191P, 190P, 188P, 124P, 117P, 110P, 93P, 65P, 50P, 46P, 29P, 17P, 8P
`J59`	Linceo Obs. in Spain, 1 in MPEC 2007-Y47 -- 46P
`D35`	Lulin Minor Bodies Tracking in Taiwan, 1 in MPEC 2007-Y47 -- 70P
`711`	McDonald Obs. in Texas, 7 in MPEC 2007-Y43 -- 2007 XJ20, 2007 VR183, 2007 TG15, 2007 LR32, 54401, 162004, 3553
`152`	Moletai Obs. in Lithuania, 1 in MPEC 2007-Y47 -- 17P
`J46`	Montana Blanca Obs. in the Canary Islands, 2 in MPEC 2007-Y47 -- C/2006 W3, 8P
`213`	Montcabre Obs. in Spain, 9 in MPEC 2007-Y47 -- P/2007 V1, P/2007 T2, C/2006 W3, 110P, 93P, 50P, 29P, 17P, 8P
`945`	Monte Deva Obs. in Spain, 8 in MPEC 2007-Y47 -- C/2006 W3, C/2006 S5, 110P, 93P, 74P, 50P, 17P, 8P
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2007-Y43 & 2007-Y47 -- 2007 YX1, P/2007 T6, C/2007 E1, 2001 PK9, 164184, 163249, 154589, 143651, 1862, 4P
`J47`	Nazaret Obs. in Spain, 6 in MPEC 2007-Y47 -- P/2007 V1, P/2007 T2, 194P, 110P, 17P, 8P
`224`	Ottmarsheim Obs. in France, 4 in MPEC 2007-Y47 -- 93P, 50P, 17P, 8P
`A32`	Panker Obs. in Germany, 3 in MPEC 2007-Y47 -- 50P, 29P, 17P
`H45`	Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 2 in MPECs 2007-Y44 & 2007-Y47 -- C/2007 W1, 17P
`H06`	RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-Y47 -- 8P
`H066`	Andrew Lowe in Alberta via RAS Obs. Mayhill in New Mexico, 1 in MPEC 2007-Y43 -- 2007 XH16
`H68`	Red Barn Obs. in Georgia, 1 in MPEC 2007-Y47 -- 17P
`461`	SZTE Asteroid Program (SZTE) in Hungary, 4 in MPECs 2007-Y44, 2007-Y45 & 2007-Y47 -- C/2007 W3, C/2007 W1, 8P, 7P
`104`	San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2007-Y47 -- 194P
`233`	San Vito Obs. in Italy, 5 in MPEC 2007-Y47 -- C/2006 W3, 110P, 50P, 17P, 8P
`204`	Schiaparelli Obs. in Italy, 19 in MPECs 2007-Y43, 2007-Y44, 2007-Y46 & 2007-Y47 -- 2007 YZ, 2007 YH, C/2007 Y1, C/2007 W1, C/2007 S2, P/2007 C2, C/2006 S5, 2002 XY4, 195P, 190P, 179P, 173P, 143P, 110P, 79P, 74P, 29P, 26P, 8P
`510`	Siegen Obs. in Germany, 3 in MPEC 2007-Y47 -- 50P, 17P, 8P
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2007-Y47 -- 143P
`A97`	Stammersdorf Obs. in Austria, 2 in MPEC 2007-Y47 -- 17P, 8P
`673`	Table Mtn. Obs. in southern California, 1 in MPEC 2007-Y47 -- 194P
`J70`	Vega del Thader Obs. in Spain, 6 in MPEC 2007-Y47 -- P/2007 V1, C/2006 S5, 110P, 93P, 50P, 29P
`H47`	Vicksburg Obs. in Mississippi, 3 in MPEC 2007-Y47 -- 93P, 50P, 46P
`198`	Wildberg Obs. in Germany, 2 in MPEC 2007-Y43 -- 2007 XT3, 2007 XH16

Impact Risk Monitoring on 24 December '07

There was no risk monitoring news to report on this day.

Chronology on 24 December '07

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

1637	Grabbed MPEC 2007-Y47 - Observations of Comets - see above
1557	Grabbed MPEC 2007-Y44 - Comet C/2007 W1 (Boattini) - see above Grabbed MPEC 2007-Y45 - Comet C/2007 W3 (LINEAR) - see above Grabbed MPEC 2007-Y46 - Comet C/2007 Y1 (LINEAR) - see above
1449	Grabbed MPEC 2007-Y43 - Daily Orbit Update - see above
1448	The NEOCP has become empty

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