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15657 (1125 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2015657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1815655697693138 4.5467e-08  
a 3.181046881824444 1.64e-08 au
q 2.603478292263089 1.4339e-07 au
i 1.009792699572949 4.4396e-06 deg
node 191.7618532214574 0.00022956 deg
peri 186.1957752582088 0.00022985 deg
M 130.7216319929071 1.1308e-05 deg
tp 2458644.013882931900
(2019-Jun-09.51388293)
6.3619e-05 TDB
period 2072.304315778545
5.67
1.6025e-05
4.387e-08
d
yr
n .173719659443334 1.3434e-09 deg/d
Q 3.758615471385798 1.9377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1458  
   data-arc span      17430 days (47.72 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51349  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:30:00  

Additional Information
 Earth MOID = 1.60465 au 
 Jupiter MOID = 1.70704 au 
 T_jup = 3.173 
[ show covariance matrix ]

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 14.16   n/a MPCxxxxx  
diameter diameter 5.632 km 1.367 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.140   0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15657 (1125 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20000621/Numbers.arcLast 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
1983-May-20 11:52 < 00:01 Jupiter 1.9297081900825 1.92970762599868 1.92970875416621 2.62025366976223 2.44700899608643 2445474.994188357 0.950770724025939 48.3327345179938 11.831030351603 -84.2830756897863 2284115.9457421 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
1994-Mar-07 14:11 < 00:01 Jupiter 1.76134161525581 1.76134116332303 1.76134206718819 1.79967158042395 1.50898156815366 2449419.091046344 0.649306462777197 61.1140963575722 30.6986425882363 -85.9155457219735 2155259.58442916 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2005-Jan-03 05:41 < 00:01 Jupiter 1.71770181224067 1.71770134654994 1.7177022779309 1.59484381408978 1.24791792238387 2453373.736476072 0.362128584523718 88.3671194812044 55.1033134418387 -52.6082245329174 2094336.0576599 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2015-Oct-29 04:24 < 00:01 Jupiter 1.82044416367626 1.82044369387682 1.8204446334755 2.0335611882091 1.79019670400073 2457324.683409110 0.218820468998922 45.50864672651 11.0939422743708 89.3656853525331 2337735.33332242 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2102-Apr-07 05:52 00:02 Jupiter 1.92923187979132 1.92923125534481 1.92923250423772 2.67576372737736 2.50631572589858 2488895.744286677 1.68267117064178 49.4367297148811 11.7883691570977 -83.4329787034826 1943646.04915185 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2113-Jan-22 04:48 00:02 Jupiter 1.75972454444636 1.75972404471513 1.75972504417739 1.82595913251722 1.5399514620446 2492838.699789738 1.89760587802987 82.1785643058536 32.5170929372473 79.8071351829823 1993848.1898731 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2123-Nov-20 23:41 00:02 Jupiter 1.71659890991918 1.7165984163846 1.71659940345366 1.59954547161195 1.25366838570828 2496793.486471416 2.16456853327718 124.685458627864 63.5054275484999 -75.7558095362241 2040188.75032415 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30
2134-Sep-16 23:46 00:03 Jupiter 1.81913376846366 1.8191329240979 1.81913461283108 1.99778320844827 1.74925714405973 2500746.490052204 2.53096791946707 133.270739663514 13.8447168491857 -83.846484519968 2263460.59071388 T 38 CATAB v2.0g-lin.ifort 2021-Jul-08 17:30:08 2021-Jul-08 17:30

Alternate Designations
 1125 T-2 = 1990 RB4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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