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1122 Neith (1928 SB)
Classification:
Main-belt Asteroid
SPK-ID:
2001122
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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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[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 37
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2558136815720388
3.9146e-08
a
2.608299544421691
1.0048e-08
au
q
1.941060835320506
1.0209e-07
au
i
4.733735521286029
4.3243e-06
deg
node
63.38374878393805
4.6793e-05
deg
peri
328.7643569227738
4.7468e-05
deg
M
265.2055854349703
1.188e-05
deg
t
p
2459405.649095020244
(2021-Jul-10.14909502)
5.2429e-05
TDB
period
1538.6315203965
4.21
8.891e-06
2.434e-08
d
yr
n
.233974148603968
1.352e-09
deg/d
Q
3.275538253522874
1.2618e-08
au
Orbit Determination Parameters
# obs. used (total)
2475
data-arc span
35032 days (95.91 yr)
first obs. used
1924-11-24
last obs. used
2020-10-23
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.42303
source
ORB
producer
Otto Matic
solution date
2020-Nov-13 04:22:15
Additional Information
Earth MOID
= .949126 au
Jupiter MOID
= 2.16663 au
T_jup
= 3.359
[ show covariance matrix ]
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
11.8
n/a
MPO452174
diameter
diameter
11.566
km
0.261
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
rotation period
rot_per
12.599
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Oey, J. (2009) Minor Planet Bull. 36, 162-165.]
geometric albedo
albedo
0.284
0.043
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
1122 Neith (1928 SB)
Discovered 1928-Sep-17 by Delporte, E. at Uccle
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
Alternate Designations
1928 SB
= 1941 YH = 1953 OA = A924 VA
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2021-Jan-21 06:27 UT
(server date/time)
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Ryan S. Park
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