+ View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Small-Body Database Browser
Search:
[
help
]
101812 (1999 JD7)
Classification:
Main-belt Asteroid
SPK-ID:
2101812
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 25
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.06514532168494484
5.4318e-08
a
2.653958239593113
1.3935e-08
au
q
2.48106527633641
1.4716e-07
au
i
12.96181802173872
4.147e-06
deg
node
81.08890254569503
1.9794e-05
deg
peri
104.3492357466046
3.8921e-05
deg
M
32.13508653109869
3.1132e-05
deg
t
p
2459059.533301943443
(2020-Jul-29.03330194)
0.00013687
TDB
period
1579.208795695923
4.32
1.2438e-05
3.405e-08
d
yr
n
.2279622561507808
1.7955e-09
deg/d
Q
2.826851202849817
1.4843e-08
au
Orbit Determination Parameters
# obs. used (total)
905
data-arc span
7675 days (21.01 yr)
first obs. used
1999-05-08
last obs. used
2020-05-12
planetary ephem.
DE441
SB-pert. ephem.
SB441-N16
condition code
0
norm. resid. RMS
.56454
source
ORB
producer
Otto Matic
solution date
2021-Apr-13 15:38:44
Additional Information
Earth MOID
= 1.51435 au
Jupiter MOID
= 2.23024 au
T_jup
= 3.350
[ show covariance matrix ]
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.36
n/a
E2021B55
rotation period
rot_per
7.420
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Galad, A. (2010) Astron. Astrophys. 514, A55.]
101812 (1999 JD7)
Discovered 1999-May-08 by CSS at Catalina
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
Alternate Designations
1999 JD7
= 2001 XL5
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
]
2021-Apr-18 06:54 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin