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11157 (1998 AJ)
Classification: Main-belt Asteroid          SPK-ID: 2011157
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 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819469817831535 2.9819e-08  
a 3.102901896649458 1.2799e-08 au
q 2.538338261784867 9.2964e-08 au
i 4.109493088252425 3.2507e-06 deg
node 118.392000042443 5.5835e-05 deg
peri 305.4992895148674 5.6924e-05 deg
M 137.191993491607 1.0954e-05 deg
tp 2458635.689040252186
(2019-Jun-01.18904025)
5.9342e-05 TDB
period 1996.413482583944
5.47
1.2353e-05
3.382e-08
d
yr
n .1803233664471422 1.1157e-09 deg/d
Q 3.66746553151405 1.5128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2377  
   data-arc span      18864 days (51.65 yr)  
   first obs. used      1969-11-15  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49212  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:43:15  

Additional Information
 Earth MOID = 1.55424 au 
 Jupiter MOID = 1.66634 au 
 T_jup = 3.192 
[ 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 13.24   n/a MPO636235  
diameter diameter 10.794 km 0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.096   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11157 (1998 AJ)          Discovered 1998-Jan-02 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 19990728/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
1902-Oct-21 22:56 00:02 Jupiter 1.95331445772095 1.95331336700728 1.95331554843618 3.36817202433601 3.2368682180551 2416044.455686480 2.31676352371015 112.814166288173 15.5787120286839 71.9709528616566 2672700.07166543 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
1912-Nov-06 11:05 00:02 Jupiter 1.69835092469602 1.69835060830104 1.69835124109081 1.69846075324678 1.37379193239035 2419712.962109881 2.17297712998222 82.9901344462421 51.0526962188131 -56.9055241211118 2183315.46585202 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
1922-Nov-23 01:16 00:02 Jupiter 1.89951743796068 1.89951661591536 1.8995182600073 2.06812028330153 1.83991639922106 2423381.552704287 1.9140178872672 116.296018868443 6.18984965117449 -87.852571123716 2918013.83608723 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
1974-Mar-17 15:14 < 00:01 Jupiter 1.98549596957721 1.98549537018334 1.98549656897119 3.58299701182981 3.46188641981952 2442124.134647704 0.881254934444584 52.2058925012321 16.4070819283513 70.9778854720053 2960612.34528806 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
1984-Apr-03 03:32 < 00:01 Jupiter 1.70331341629694 1.70331311133459 1.70331372125919 1.78638285231025 1.48209483025801 2445793.647506541 0.711773990099466 62.9459008578131 30.6569668209648 -89.4293320321009 2802477.8234279 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
1994-Apr-19 06:00 < 00:01 Jupiter 1.86853517613835 1.86853475063107 1.86853560164542 1.96057333236866 1.71383522666625 2449461.749912423 0.485221320228491 55.0931190237416 9.61089336952381 -82.9169963121719 2956067.60105574 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
2055-Aug-31 01:24 < 00:01 Jupiter 1.70675239773158 1.70675211819596 1.7067526772671 1.87616718906201 1.58979516766329 2471875.558291208 0.808237316210985 62.510471702321 23.753727426105 89.1331355323878 3060865.22581508 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
2065-Sep-13 08:48 00:01 Jupiter 1.83767641879133 1.83767585936282 1.83767697821995 1.8682601695044 1.60267130232053 2475541.866331710 1.02287068608636 77.7770169448457 15.7102398178303 -83.4377485673524 2802751.51781518 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
2127-Jan-26 23:30 00:02 Jupiter 1.70838568105234 1.70838524494805 1.70838611715731 1.96165973785287 1.69011928628336 2497956.479213355 2.27955842156748 109.092557551583 25.2861575863197 -78.2515518876471 2335435.35051263 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
2137-Feb-09 17:58 00:02 Jupiter 1.80469238330213 1.80469140361273 1.80469336299327 1.78592088500969 1.50027475265219 2501623.248367737 2.48714637501769 141.693662465565 22.923835984595 -82.4616916372475 2619384.54730629 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43
2198-Jun-24 22:23 00:04 Jupiter 1.71768861092315 1.71768777936937 1.71768944248094 2.06707808765509 1.81289177571779 2524038.432321014 3.76749411220161 177.423421378741 19.7215699186249 -80.5192832029375 2196982.86125516 T 41 CATAB v2.0g-lin.ifort 2021-Aug-25 21:43:22 2021-Aug-25 21:43

Alternate Designations
 1998 AJ = 1969 VQ2 = 1980 VU2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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