+ View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Small-Body Database Browser
Search:
[
help
]
15662 (4064 T-2)
Classification:
Main-belt Asteroid
SPK-ID:
2015662
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference:
JPL 29
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.03109675039070866
3.099e-08
a
2.292812106799105
6.5639e-09
au
q
2.221513101021178
7.185e-08
au
i
8.516226360949224
3.3937e-06
deg
node
176.7184971556483
1.8601e-05
deg
peri
321.9690992254537
5.5496e-05
deg
M
28.55286976225694
5.0894e-05
deg
t
p
2458899.923066575698
(2020-Feb-20.42306658)
0.00017939
TDB
period
1268.093061546143
3.47
5.4455e-06
1.491e-08
d
yr
n
.2838908364982804
1.2191e-09
deg/d
Q
2.364111112577032
6.768e-09
au
Orbit Determination Parameters
# obs. used (total)
2224
data-arc span
17069 days (46.73 yr)
first obs. used
1973-09-19
last obs. used
2020-06-13
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.49508
source
ORB
producer
Otto Matic
solution date
2020-Nov-13 02:32:11
Additional Information
Earth MOID
= 1.23674 au
Jupiter MOID
= 2.61517 au
T_jup
= 3.582
[ hide covariance matrix ]
Orbital Elements at Epoch 2457265.5 (2015-Aug-31.0) TDB
Reference:
JPL 29
(heliocentric ecliptic J2000)
Element
Value
Uncertainty (1-sigma)
Units
e
.0307538728114815
3.1247e-08
q
2.22238452821159
7.2446e-08
au
t
p
2457635.796960759082
(2016-Sep-04.29696076)
0.0001815
TDB
node
176.7393086743733
1.8593e-05
deg
peri
323.1404366749854
5.5624e-05
deg
i
8.517418252059374
3.3947e-06
deg
Orbit Determination Parameters
# obs. used (total)
2224
data-arc span
17069 days (46.73 yr)
first obs. used
1973-09-19
last obs. used
2020-06-13
planetary ephem.
DE431
SB-pert. ephem.
SB431-N16
condition code
0
norm. resid. RMS
.49508
source
ORB
producer
Otto Matic
solution date
2020-Nov-13 02:32:11
Additional Information
Jupiter MOID
= 2.61517 au
T_jup
= 3.582
Orbit Covariance (6×6)
e
q
tp
node
peri
i
e
9.763506475226627E-16
-2.25501042964488E-15
1.536976141353668E-12
-2.181421797321066E-15
4.622953803326094E-13
-2.001378296443355E-15
q
-2.25501042964488E-15
5.24842642826467E-15
-3.87091572583781E-12
4.827466508839545E-15
-1.163055690069792E-12
4.679817900047003E-15
tp
1.536976141353668E-12
-3.87091572583781E-12
3.294162149246214E-8
3.706996210958463E-12
9.520045056233781E-9
1.007603850544907E-12
node
-2.181421797321066E-15
4.827466508839545E-15
3.706996210958463E-12
3.4569503380761E-10
-3.404665644634568E-10
-4.86245744916727E-12
peri
4.622953803326094E-13
-1.163055690069792E-12
9.520045056233781E-9
-3.404665644634568E-10
3.094029018509502E-9
5.067327012459722E-12
i
-2.001378296443355E-15
4.679817900047003E-15
1.007603850544907E-12
-4.86245744916727E-12
5.067327012459722E-12
1.152416982399765E-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
14.2
n/a
MPO350927
diameter
diameter
2.423
km
0.410
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
geometric albedo
albedo
0.756
0.115
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)
15662 (4064 T-2)
Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference:
20000621/Numbers.arc
Last Updated:
2004-04-19
[ hide close-approach data ]
Close-Approach Data
...sorted by
Date/Time (TDB)
Date/Time (TDB)
Time Uncertainty
(days_HH:MM)
Body
Nominal Distance (au)
Minimum Distance (au)
Maximum Distance (au)
V-relative (km/s)
V-infinity (km/s)
JD (TDB)
Time Uncertainty (minutes)
Semi-major axis (km)
Semi-minor axis (km)
range-LOV angle (deg)
N-sigma
BP
Orbit Ref.
Reference
Modified
2087-Dec-11 08:57
00:02
Thisb
0.0445404894845606
0.0445396197127782
0.0445413600942291
4.29318063083836
4.2931805951817
2483665.872591988
2.22750569103412
377.608953648239
25.331729829247
-84.6390595428904
261761.428143084
T
29
CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16
2020-Nov-13 02:32
2088-Jan-30 12:19
< 00:01
Juno
0.0316647758670347
0.0316583792515921
0.0316711732431457
4.7112695382881
4.71126945673667
2483716.013290416
0.80593245544735
402.544026076881
33.2730519988043
37.7966992722518
87680.4000062549
T
29
CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16
2020-Nov-13 02:32
2108-May-05 12:43
< 00:01
Hebe
0.0449789154820287
0.0449689548343936
0.0449888762612147
5.67021060764028
5.67021058326501
2491116.029684634
0.38005745947053
511.258265903204
38.8779432389772
-13.8114085550467
43233.113619132
T
29
CATAB v2.0f-lin.ifort 2020-Nov-13 02:32:16
2020-Nov-13 02:32
Alternate Designations
4064 T-2
= 1989 EM12 = 1991 XZ2
[
Ephemeris
|
Orbit Diagram
|
Orbital Elements
|
Mission Design
|
Physical Parameters
|
Discovery Circumstances
|
Close-Approach Data
]
2021-Jan-24 19:41 UT
(server date/time)
Site Manager:
Ryan S. Park
Webmaster
:
Alan B. Chamberlin