Risk monitoring  1 May 
The Saturday Daily Orbit Update MPEC has 2004 HZ reported from Thursday night from the 2.5m Isaac Newton Telescope at La Palma in the Canary Islands. This added four days to what had been a 6.67-day observation arc for this small object, which is predicted to be in view only until May 7th. Today both NEODyS and JPL cut their solution counts by about two thirds while slightly raising their overall risk ratings.
The Minor Planet Center Last Observation page is showing that NEAT's Hawaiian telescope caught 2004 HK33 today, the Spacewatch 1.8m telescope in Arizona nabbed 2004 HZ this morning, and Reedy Creek Observatory in Australia, which discovered 2004 GA1, picked it up yesterday.
MPEC 2004-J03 today announces 2004 HE62 as discovered and followed over a 3.86-hour period by the Siding Spring Survey (SSS) in Australia on Wednesday UT, and was confirmed yesterday with the Australian National University 1m telescope at Siding Spring, and by Reedy Creek. This is the third kilometer-size
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| Summary Risk Table - sources checked at 2359 UTC, 1 May |
Object |
Assessment |
Years |
VI | PS
cum |
PS
max | T
S | Arc
days |
|
| 2004 HZ | NEODyS 5/1 | 2023-2045 | 6 | -2.42 | -2.43 | 0 | 10.687 |
| JPL 5/1 | 2023-2033 | 3 | -2.48 | -2.48 | 0 | 10.687 |
|
| 2004 HW | NEODyS 4/29 | 2016-2045 | 3 | -4.82 | -5.13 | 0 | 6.891 |
| JPL 4/29 | 2092-2092 | 1 | -3.50 | -3.50 | 0 | 6.891 |
|
| 2004 HQ1 | NEODyS 4/30 | 2065-2065 | 1 | -7.57 | -7.57 | 0 | 9.741 |
| JPL 4/30 | 2065-2065 | 1 | -7.73 | -7.73 | 0 | 9.741 |
|
| 2004 HM | JPL 4/29 | 2101-2104 | 2 | -5.05 | -5.05 | 0 | 10.990 |
|
| 2004 HK33 | JPL 4/28 | 2019-2101 | 9 | -2.85 | -3.18 | 0 | 5.997 |
| NEODyS 4/28 | 2019-2071 | 10 | -2.32 | -2.48 | 0 | 5.997 |
|
| 2004 HE62 | JPL 5/1 | 2064-2087 | 2 | -5.22 | -5.33 | 0 | 4.164 |
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| 2004 GE2 | JPL 4/24 | 2100-2100 | 1 | -6.02 | -6.02 | 0 | 11.811 |
|
| 2004 GA1 | JPL 4/28 | 2083-2083 | 1 | -4.12 | -4.12 | 0 | 15.708 |
| NEODyS 4/19 | R E M O V E D |
VI = count of "virtual impactors" (impact solutions)
See A/CC's Consolidated Risk Tables for more and maybe
newer details, and check the monitors' links for latest info.
Note that only objects recently in view are shown here.
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object discovered from Australia since April 11th. Both of the first two, 2004 GA1 and 2004 HW, have impact solutions, and now JPL has posted 2004 HE62 with two low-rated solutions.
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