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JPL Small-Body Database Browser
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27995 (1997 WL2)
Classification:
Mars-crossing Asteroid
SPK-ID:
2027995
[
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 26
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2722459295451732
5.6211e-08
a
2.122670371540869
1.071e-08
au
q
1.544782003122727
1.2442e-07
au
i
3.462329254028208
3.846e-06
deg
node
71.29178402681893
6.8136e-05
deg
peri
232.2748920275359
6.8771e-05
deg
M
77.04242610557482
5.538e-06
deg
t
p
2458358.759334356556
(2018-Aug-28.25933436)
1.7383e-05
TDB
period
1129.593706101406
3.09
8.5492e-06
2.341e-08
d
yr
n
.3186986595759963
2.412e-09
deg/d
Q
2.700558739959011
1.3626e-08
au
Orbit Determination Parameters
# obs. used (total)
1320
data-arc span
16092 days (44.06 yr)
first obs. used
1975-10-03
last obs. used
2019-10-24
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.54314
source
ORB
producer
Otto Matic
solution date
2019-Nov-07 05:03:17
Additional Information
Earth MOID
= .53199 au
Jupiter MOID
= 2.55037 au
T_jup
= 3.678
[ 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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Close-Approach Data
]
Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
15.1
n/a
MPO439294
diameter
diameter
2.056
km
0.369
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)
geometric albedo
albedo
0.381
0.158
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)
27995 (1997 WL2)
Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference:
20010902/Numbers.arc
Last Updated:
2004-04-19
[ show close-approach data ]
Alternate Designations
1997 WL2
= 1975 TN3 = 2000 VL32
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
|
Physical Parameters
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Discovery Circumstances
|
Close-Approach Data
]
2019-Dec-06 18:57 UT
(server date/time)
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