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1498 Lahti (1938 SK1)
Classification:
Main-belt Asteroid
SPK-ID:
2001498
[
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
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Close-Approach Data
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[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 39
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.2354245070298862
4.0778e-08
a
3.102778221274424
1.0936e-08
au
q
2.372308188107826
1.2394e-07
au
i
12.66317249581568
3.9308e-06
deg
node
265.1052121967992
2.0793e-05
deg
peri
96.58847493894206
2.2408e-05
deg
M
348.074851237358
7.5035e-06
deg
t
p
2459066.628067794722
(2020-Aug-05.12806779)
4.165e-05
TDB
period
1996.294124286091
5.47
1.0555e-05
2.89e-08
d
yr
n
.1803341479696746
9.5344e-10
deg/d
Q
3.833248254441023
1.3511e-08
au
Orbit Determination Parameters
# obs. used (total)
2328
data-arc span
25954 days (71.06 yr)
first obs. used
1949-10-26
last obs. used
2020-11-16
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.43942
source
ORB
producer
Otto Matic
solution date
2020-Dec-18 02:00:57
Additional Information
Earth MOID
= 1.41093 au
Jupiter MOID
= 1.96335 au
T_jup
= 3.141
[ show covariance matrix ]
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Physical Parameter Table
Parameter
Symbol
Value
Units
Sigma
Reference
Notes
absolute magnitude
H
11.8
n/a
MPO265964
diameter
diameter
31.605
km
0.579
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
rotation period
rot_per
58.
h
n/a
LCDB (Rev. 2020-October); Warner et al., 2009
Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Ruthroff, J.C. (2011) Minor Planet Bull. 38, 86-88.]
geometric albedo
albedo
0.034
0.006
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)
1498 Lahti (1938 SK1)
Discovered 1938-Sep-16 by Vaisala, Y. at Turku
Reference:
DISCOVERY.DB
Last Updated:
2003-08-29
[ show close-approach data ]
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Orbital Elements
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Close-Approach Data
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2021-Jan-24 13:53 UT
(server date/time)
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Webmaster
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