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JPL Small-Body Database Browser
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74823 (1999 TD15)
Classification:
Mars-crossing Asteroid
SPK-ID:
2074823
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference:
JPL 17
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.29604087293829
4.1228e-08
a
2.356257755074148
1.1389e-08
au
q
1.658709152394382
9.7684e-08
au
i
22.74751548155112
5.8529e-06
deg
node
213.4898559465103
1.1975e-05
deg
peri
231.5458145593546
1.5887e-05
deg
M
99.21140663796709
1.3063e-05
deg
t
p
2458236.424270246447
(2018-Apr-27.92427025)
4.6487e-05
TDB
period
1321.090660366882
3.62
9.5785e-06
2.622e-08
d
yr
n
.2725021157140146
1.9758e-09
deg/d
Q
3.053806357753914
1.4761e-08
au
Orbit Determination Parameters
# obs. used (total)
978
data-arc span
7232 days (19.80 yr)
first obs. used
1999-07-22
last obs. used
2019-05-10
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.49088
source
ORB
producer
Otto Matic
solution date
2019-May-30 05:42:07
Additional Information
Earth MOID
= .741645 au
Jupiter MOID
= 2.49214 au
T_jup
= 3.394
[ 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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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
14.9
n/a
MPO385288
diameter
diameter
2.374
km
0.329
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)
rotation period
rot_per
33.451
h
n/a
LCDB (Rev. 2019-January); Warner et al., 2009
Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
geometric albedo
albedo
0.377
0.130
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)
74823 (1999 TD15)
Discovered 1999-Oct-10 by Kagawa, T. at Gekko
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[
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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2019-Dec-08 09:00 UT
(server date/time)
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