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JPL Small-Body Database Browser
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74860 (1999 TZ89)
Classification:
Main-belt Asteroid
SPK-ID:
2074860
[
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 15
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.1960662039464275
3.929e-08
a
2.373681449666354
9.7024e-09
au
q
1.908282738452219
9.1372e-08
au
i
2.17884381509182
5.0145e-06
deg
node
172.3161179442103
0.00011277
deg
peri
278.0763044541222
0.00011351
deg
M
64.06347406812296
1.3251e-05
deg
t
p
2458362.794042746913
(2018-Sep-01.29404275)
4.8631e-05
TDB
period
1335.771215281188
3.66
8.1899e-06
2.242e-08
d
yr
n
.2695072298920724
1.6524e-09
deg/d
Q
2.839080160880489
1.1605e-08
au
Orbit Determination Parameters
# obs. used (total)
741
data-arc span
15216 days (41.66 yr)
first obs. used
1977-09-09
last obs. used
2019-05-08
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.53672
source
ORB
producer
Otto Matic
solution date
2019-May-30 05:42:13
Additional Information
Earth MOID
= .926308 au
Jupiter MOID
= 2.3653 au
T_jup
= 3.516
[ 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
15.8
n/a
MPO319942
74860 (1999 TZ89)
Discovered 1999-Oct-02 by LINEAR at Socorro
Reference:
20040415/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1999 TZ89
= 1977 RL9
[
Ephemeris
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Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-15 23:47 UT
(server date/time)
Site Manager:
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