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(2011 SZ21)
Classification: Mars-crossing Asteroid          SPK-ID: 3578910
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5585309880679901 1.527e-07  
a 2.95106183785945 8.0493e-08 au
q 1.302802353710073 4.4554e-07 au
i 16.48048072992612 1.1163e-05 deg
node 229.401583122431 4.1754e-05 deg
peri 41.22849143270113 6.2215e-05 deg
M 326.6517373478579 1.2379e-05 deg
tp 2459372.028624287077
(2021-Jun-06.52862429)
6.2579e-05 TDB
period 1851.679812752745
5.07
7.5759e-05
2.074e-07
d
yr
n .1944180616544156 7.9544e-09 deg/d
Q 4.599321322008826 1.2545e-07 au
  Orbit Determination Parameters
   # obs. used (total)      155  
   data-arc span      7270 days (19.90 yr)  
   first obs. used      2001-06-23  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55163  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-21 22:29:38  

Additional Information
 Earth MOID = .335741 au 
 Jupiter MOID = .863899 au 
 T_jup = 2.961 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO209996  

[ 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
1900-May-31 12:37 00:03 Earth 0.450412929918735 0.450378157483479 0.450447702681429 9.54810044477733 9.54748086302365 2415171.026019760 2.53191100536282 1837.38201345447 144.462143652262 -19.375781615828 162496.195503952 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
1918-Feb-08 11:34 00:02 Jupiter 0.914192196810039 0.914190109886521 0.914194283733712 5.30837207341466 5.13086374676285 2421632.981810648 1.54386971627507 121.136626057534 93.1931270158077 -56.2021260894025 1049183.63215277 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
1953-Oct-14 13:52 00:02 Jupiter 1.15764396694145 1.15763810101439 1.15764983287188 5.57348116893416 5.44061913138338 2434665.078016723 1.92126513251656 312.438872755748 118.523097094543 22.594215241197 719447.583339067 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2013-Jan-27 10:58 00:01 Jupiter 0.955503617167424 0.95550117853515 0.955506055806812 6.55536438904452 6.41871233915888 2456319.956742866 1.46322328852848 311.612815095098 104.840596773677 80.0618071539568 796441.88789475 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2021-Jun-06 13:51 < 00:01 Earth 0.451028389193425 0.451025081148266 0.451031697243992 11.4710955425346 11.4705805352995 2459372.077409372 0.363064607042011 183.386901361395 37.1731064579053 26.4971852905413 686786.38356858 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2026-Jun-04 13:31 < 00:01 Earth 0.333625225845659 0.333624302608344 0.333626149088302 8.93331209761414 8.93241804577296 2461196.063113834 0.257142772609585 302.279920047832 44.8846717040673 -88.0358074169406 995079.932387047 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2031-May-29 18:18 < 00:01 Earth 0.482640115412571 0.482633888024776 0.4826463428199 8.49386348979477 8.49321350936459 2463016.262690864 0.510199824427145 349.914527501507 97.4816543462099 -28.6798296476912 373437.463368472 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2048-Aug-17 02:17 00:02 Jupiter 0.845753678651562 0.845751691054539 0.845755666282621 5.73791172410428 5.56063220111047 2469305.595329559 1.61454301891579 527.447774466679 82.0672484758349 -82.5966665071321 951998.219700466 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2082-Jun-06 00:00 00:03 Earth 0.345605244311891 0.34558669404406 0.345623815908714 8.15369131498725 8.15274572481341 2481651.500243707 2.99627173002304 4389.22842464303 59.7358319683566 -77.8474817985713 832818.835373251 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2084-Apr-10 12:13 00:04 Jupiter 1.01462899016611 1.01459584555427 1.01466213670482 6.58979585250933 6.46187195884199 2482326.008690581 4.19073935198837 2776.19392982809 94.226445137911 54.8378343774046 795887.724770695 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2132-Jan-17 17:37 00:17 Jupiter 1.37371265396177 1.37364610085202 1.3737792105897 5.9630297782255 5.85871460466069 2499773.233833471 16.9562455918815 4822.97133606176 102.848087945396 48.4533983850088 902824.268770044 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2139-Jun-07 14:15 00:06 Earth 0.353470509543172 0.353406041620274 0.353535016342894 7.20537561664442 7.20432937000255 2502471.093460339 6.02039214039202 6672.61494859376 47.2104954142834 -61.1867565645822 756954.852469149 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2167-May-20 00:36 00:10 Jupiter 0.996404506030174 0.996387066354717 0.996421945761024 4.80979856567048 4.62968728020387 2512679.524755176 10.2996097642201 949.294965065415 88.0271743209614 22.3776606317467 624344.044674171 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2180-Jun-04 14:48 00:02 Earth 0.444203262871959 0.444130172060433 0.44427635512304 11.8841061162335 11.8836013697356 2517444.116910075 2.0050899902395 3856.83622517551 72.2878589442139 -19.1033275083785 268062.344197224 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2185-Jun-07 11:11 00:02 Earth 0.33570801694447 0.33566575166978 0.33575028838481 6.75781683727036 6.75664225897416 2519272.965904285 1.65498710017821 3097.1065534082 37.2961665068499 -47.1102746269012 713046.549431734 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
2200-Jul-15 12:55 00:14 Mars 0.0642005717519113 0.064183174676182 0.0642180583561501 11.9827132322096 11.9823410814797 2524789.037927685 13.720130365218 3882.95371830777 38.3865036197874 77.0687259976092 239930.534687315 T 28 CATAB v2.0g-lin.ifort 2021-May-21 22:29:40 2021-May-21 22:29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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