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100006 (1987 DA7)
Classification:
Mars-crossing Asteroid
SPK-ID:
2100006
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 29
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.3048357329108333
5.0145e-08
a
2.03960728500755
5.407e-09
au
q
1.417862103431998
1.0134e-07
au
i
4.218413935380952
4.0658e-06
deg
node
309.6662911856767
3.5788e-05
deg
peri
210.8667843515534
3.6056e-05
deg
M
215.4525554040719
5.0573e-06
deg
t
p
2459627.695014977969
(2022-Feb-17.19501498)
1.4996e-05
TDB
period
1063.942747808363
2.91
4.2308e-06
1.158e-08
d
yr
n
.3383640715081437
1.3455e-09
deg/d
Q
2.661352466583101
7.0552e-09
au
Orbit Determination Parameters
# obs. used (total)
1405
data-arc span
12335 days (33.77 yr)
first obs. used
1987-02-28
last obs. used
2020-12-06
planetary ephem.
DE441
SB-pert. ephem.
SB441-N16
condition code
0
norm. resid. RMS
.46944
source
ORB
producer
Otto Matic
solution date
2021-Apr-13 15:30:07
Additional Information
Earth MOID
= .428881 au
Jupiter MOID
= 2.33327 au
T_jup
= 3.740
[ hide covariance matrix ]
Orbital Elements at Epoch 2457426.5 (2016-Feb-08.0) TDB
Reference:
JPL 29
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.3042452315890291
5.008e-08
q
1.419359907642306
1.0122e-07
au
t
p
2457498.948403394609
(2016-Apr-20.44840339)
1.6659e-05
TDB
node
309.7037366057224
3.5798e-05
deg
peri
210.8352240478179
3.6068e-05
deg
i
4.21726404152424
4.064e-06
deg
Orbit Determination Parameters
# obs. used (total)
1405
data-arc span
12335 days (33.77 yr)
first obs. used
1987-02-28
last obs. used
2020-12-06
planetary ephem.
DE441
SB-pert. ephem.
SB441-N16
condition code
0
norm. resid. RMS
.46944
source
ORB
producer
Otto Matic
solution date
2021-Apr-13 15:30:07
Additional Information
Jupiter MOID
= 2.33327 au
T_jup
= 3.740
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
2.508007196759575E-15
-5.066055596221324E-15
-5.425696968545649E-13
-1.328892529520949E-14
-7.941912090078109E-14
-9.029267056801054E-15
q
-5.066055596221324E-15
1.024636032856364E-14
1.079501698034828E-12
2.632711790878713E-14
1.559370601981284E-13
1.817238082148018E-14
tp
-5.425696968545649E-13
1.079501698034828E-12
2.775343946938189E-10
4.159051896565096E-12
7.384485921056411E-11
2.903835741994247E-12
node
-1.328892529520949E-14
2.632711790878713E-14
4.159051896565096E-12
1.28149227202636E-9
-1.276369166076596E-9
3.04747674720422E-11
peri
-7.941912090078109E-14
1.559370601981284E-13
7.384485921056411E-11
-1.276369166076596E-9
1.300911644071636E-9
-2.97462997551273E-11
i
-9.029267056801054E-15
1.817238082148018E-14
2.903835741994247E-12
3.04747674720422E-11
-2.97462997551273E-11
1.651575756908315E-11
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.85
n/a
E2021B55
rotation period
rot_per
3.9422
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2019) http://www.asu.cas.cz/~ppravec/neo.htm]
100006 (1987 DA7)
Discovered 1987-Feb-28 by Debehogne, H. at La Silla
Reference:
20051019/Numbers.arc
Last Updated:
2005-10-26
[ show close-approach data ]
Alternate Designations
1987 DA7
= 2000 VJ39
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Apr-23 10:24 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin
