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JPL Small-Body Database Browser
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74587 (1999 ON1)
Classification:
Main-belt Asteroid
SPK-ID:
2074587
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 19
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1429950167550424
3.6075e-08
a
2.263978653533772
8.6083e-09
au
q
1.940240988038652
8.3071e-08
au
i
4.013537561075847
4.5251e-06
deg
node
144.7883075246606
5.9734e-05
deg
peri
122.2104916628445
6.2072e-05
deg
M
322.1618433391393
1.6057e-05
deg
t
p
2458731.277908829609
(2019-Sep-04.77790883)
5.5483e-05
TDB
period
1244.247905642776
3.41
7.0965e-06
1.943e-08
d
yr
n
.2893314092532266
1.6502e-09
deg/d
Q
2.587716319028893
9.8393e-09
au
Orbit Determination Parameters
# obs. used (total)
674
data-arc span
8812 days (24.13 yr)
first obs. used
1995-03-26
last obs. used
2019-05-11
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.60648
source
ORB
producer
Otto Matic
solution date
2019-May-30 05:41:43
Additional Information
Earth MOID
= .927441 au
Jupiter MOID
= 2.49245 au
T_jup
= 3.601
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
16.3
n/a
MPO432298
74587 (1999 ON1)
Discovered 1999-Jul-21 by Comba, P. G. at Prescott
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1999 ON1
= 2002 HM4
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-11 00:45 UT
(server date/time)
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