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1122 Neith (1928 SB)
Classification:
Main-belt Asteroid
SPK-ID:
2001122
[
Ephemeris
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Orbit Diagram
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Orbital Elements
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Mission Design
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[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference:
JPL 37
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2552538944869021
3.9163e-08
a
2.608118575809962
1.0534e-08
au
q
1.942386152050837
1.0183e-07
au
i
4.730849626209094
4.3216e-06
deg
node
63.34600287890728
4.6847e-05
deg
peri
328.775604017782
4.7522e-05
deg
M
311.9644908564667
1.2068e-05
deg
t
p
2459405.781268589229
(2021-Jul-10.28126859)
5.247e-05
TDB
period
1538.471393553894
4.21
9.3208e-06
2.552e-08
d
yr
n
.2339985010500547
1.4177e-09
deg/d
Q
3.273850999569087
1.3223e-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
= .949314 au
Jupiter MOID
= 2.16948 au
T_jup
= 3.359
[ hide covariance matrix ]
Orbital Elements at Epoch 2456561.5 (2013-Sep-26.0) TDB
Reference:
JPL 37
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2573049617135173
3.9187e-08
q
1.935946317108106
1.0222e-07
au
t
p
2456334.807858976623
(2013-Feb-11.30785898)
4.1643e-05
TDB
node
63.4178206308919
4.6729e-05
deg
peri
329.2251166790192
4.7391e-05
deg
i
4.738876849584382
4.3295e-06
deg
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
Jupiter MOID
= 2.16948 au
T_jup
= 3.359
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
1.535602290162487E-15
-3.995142680209065E-15
1.786593580121253E-13
3.003827720797102E-15
1.233022679027583E-14
6.094145974825742E-16
q
-3.995142680209065E-15
1.044989475409553E-14
-3.320051106287268E-13
-8.064158821052992E-15
-7.135641078975269E-15
-1.596894698446475E-15
tp
1.786593580121253E-13
-3.320051106287268E-13
1.734166506035189E-9
3.88326833316293E-13
3.456335439141697E-10
-4.310713220302245E-13
node
3.003827720797102E-15
-8.064158821052992E-15
3.88326833316293E-13
2.183576772400413E-9
-2.175898469654841E-9
-4.294614474833153E-11
peri
1.233022679027583E-14
-7.135641078975269E-15
3.456335439141697E-10
-2.175898469654841E-9
2.245951532436029E-9
4.271184837262268E-11
i
6.094145974825742E-16
-1.596894698446475E-15
-4.310713220302245E-13
-4.294614474833153E-11
4.271184837262268E-11
1.874464094869981E-11
[
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
11.81
n/a
E2021B10
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-Mar-03 22:47 UT
(server date/time)
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Ryan S. Park
Webmaster
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