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JPL Small-Body Database Browser
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74828 (1999 TB21)
Classification:
Main-belt Asteroid
SPK-ID:
2074828
[
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 16
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1272587339666539
3.8704e-08
a
2.308527442745993
8.1047e-09
au
q
2.014747163054861
8.7505e-08
au
i
3.667903101806803
4.6754e-06
deg
node
354.5292185506027
6.458e-05
deg
peri
102.3407575992408
6.8672e-05
deg
M
148.9670107424252
2.0733e-05
deg
t
p
2458070.362419613618
(2017-Nov-12.86241961)
7.3433e-05
TDB
period
1281.152974661552
3.51
6.7467e-06
1.847e-08
d
yr
n
.2809968888337497
1.4798e-09
deg/d
Q
2.602307722437125
9.136e-09
au
Orbit Determination Parameters
# obs. used (total)
832
data-arc span
7790 days (21.33 yr)
first obs. used
1997-01-09
last obs. used
2018-05-09
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53815
source
ORB
producer
Otto Matic
solution date
2019-Jul-13 05:32:26
Additional Information
Earth MOID
= 1.03544 au
Jupiter MOID
= 2.53976 au
T_jup
= 3.573
[ 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
15.9
n/a
MPO436306
74828 (1999 TB21)
Discovered 1999-Oct-07 by Tucker, R. A. at Goodricke-Pigott
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1999 TB21
= 1997 EN25
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-15 08:46 UT
(server date/time)
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