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JPL Small-Body Database Browser
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74660 (1999 RG90)
Classification:
Main-belt Asteroid
SPK-ID:
2074660
[
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 22
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2719133429299835
3.4623e-08
a
2.534222318941264
1.0444e-08
au
q
1.84513345647017
8.9887e-08
au
i
4.855642775357349
4.031e-06
deg
node
120.1071465889199
4.5497e-05
deg
peri
301.7000464672393
4.7189e-05
deg
M
267.8096640117801
1.4726e-05
deg
t
p
2458977.853507424776
(2020-May-08.35350742)
6.1356e-05
TDB
period
1473.55209433533
4.03
9.109e-06
2.494e-08
d
yr
n
.244307616530099
1.5102e-09
deg/d
Q
3.223311181412358
1.3284e-08
au
Orbit Determination Parameters
# obs. used (total)
886
data-arc span
16069 days (43.99 yr)
first obs. used
1975-11-02
last obs. used
2019-10-31
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.49896
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 08:55:42
Additional Information
Earth MOID
= .863444 au
Jupiter MOID
= 2.13124 au
T_jup
= 3.392
[ show covariance matrix ]
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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Physical Parameters
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Discovery Circumstances
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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.1
n/a
MPO412636
diameter
diameter
6.169
km
0.494
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.051
0.009
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
74660 (1999 RG90)
Discovered 1999-Sep-07 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1999 RG90
= 1975 VG5 = 1987 UB8 = 1991 SN2 = 1993 FP16
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-06 00:53 UT
(server date/time)
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