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9991 Anezka (1997 TY7)
Classification: Main-belt Asteroid          SPK-ID: 2009991
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1577107974140926 3.1588e-08  
a 3.199142566670458 1.7667e-08 au
q 2.694603241439493 9.9051e-08 au
i 2.177496957557813 3.1367e-06 deg
node 80.59765793610215 9.2107e-05 deg
peri 114.9021138749829 9.2653e-05 deg
M 168.9904882296485 1.1751e-05 deg
tp 2458019.410611447531
(2017-Sep-22.91061145)
6.4608e-05 TDB
period 2090.012186951734
5.72
1.7313e-05
4.74e-08
d
yr
n .1722477994375033 1.4269e-09 deg/d
Q 3.703681891901422 2.0454e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2132  
   data-arc span      15976 days (43.74 yr)  
   first obs. used      1977-02-19  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50902  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:40:49  

Additional Information
 Earth MOID = 1.69434 au 
 Jupiter MOID = 1.25227 au 
 T_jup = 3.174 
[ 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 13.3   n/a MPO358727  
diameter diameter 12.293 km 0.294 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.469 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.097   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9991 Anezka (1997 TY7)          Discovered 1997-Oct-05 by Klet at Klet
Reference: 19990202/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
1904-Jan-09 22:56 00:05 Jupiter 1.3759634299096 1.37596311192349 1.37596374789774 1.293141260538 0.664111602928864 2416489.455246503 5.47444740218341 495.851492844778 348.604886923347 75.5901434360813 2624234.15548091 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1915-Sep-30 20:38 00:04 Jupiter 1.37489793150679 1.37489747806268 1.37489838497701 1.28449030351557 0.64636764071795 2420771.359821137 3.68901243243114 784.316454233088 245.701643723606 42.232649426821 2966219.66524233 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1927-Jun-14 15:53 00:03 Jupiter 1.39261831558115 1.39261762089563 1.39261901029177 1.31625424840847 0.718386531777841 2425046.161967876 2.61381404231427 723.973242935009 169.970069814834 41.1587601635052 2964343.73059022 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1939-Feb-03 05:17 00:02 Jupiter 1.43673543053054 1.43673458219833 1.43673627887452 1.41796689862511 0.911886444202339 2429297.720336034 2.00950975451469 427.872468635975 90.2443245856199 47.3189204658677 2950629.75463175 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1950-Aug-12 23:16 00:02 Jupiter 1.53029281234307 1.53029183929891 1.53029378538863 1.68717793459258 1.31892466341572 2433506.469555087 1.66981614067492 163.257932606659 32.3259566806697 60.3035360250872 2699151.47140404 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1961-Dec-29 01:44 00:01 Jupiter 1.6993785973944 1.69937759913387 1.69937959565454 2.26486460685216 2.03291667961029 2437662.572465615 1.40004858225205 58.077387713381 7.53788237355729 -83.2333455623623 1979663.21085069 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
1973-Apr-02 22:50 00:01 Jupiter 1.93148964455266 1.93148878261393 1.93149050649127 3.17897331256005 3.03789478657913 2441775.451074039 1.09405473689637 38.5582547428297 26.0477108942967 -51.9512624337541 1953435.45507893 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2096-Jun-20 20:34 00:02 Jupiter 1.8885112885761 1.88850995894644 1.88851261820533 3.01671665522661 2.86418447156965 2486780.356721865 1.95084114952543 52.9952915939254 27.8657212752196 -34.8882985361424 1362029.0577376 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2107-Sep-30 10:53 00:02 Jupiter 1.66039373868609 1.66039238913102 1.66039508823965 2.15032280916143 1.89832060716069 2490897.953177962 2.15703535051303 43.995831640322 6.08542021376404 -84.8051647786726 1041365.78317525 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2119-Feb-24 11:33 00:02 Jupiter 1.50357208803832 1.50357092840039 1.50357324767359 1.63517603832709 1.24383294270478 2495062.980947960 2.28966289214172 131.275209116207 64.9488701824679 23.9077883641725 1104989.79198102 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2130-Sep-12 05:47 00:03 Jupiter 1.41790770189458 1.41790678022567 1.41790862356119 1.40085421422137 0.876152194075749 2499280.740996170 2.5427084433357 371.293235954607 120.327952878399 13.1431738143397 1261685.88261531 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2142-May-09 22:15 00:03 Jupiter 1.38263298692739 1.38263228695228 1.38263368690092 1.32094090352128 0.720870099986937 2503538.427231437 3.14751394625551 581.871552857002 165.130184087513 8.49423358973618 1382491.49298332 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2154-Jan-25 12:58 00:04 Jupiter 1.37260821109777 1.37260779206279 1.37260863013157 1.30416979135255 0.683139268526244 2507817.040077960 4.32297969701408 537.243778418691 184.777064541136 1.39371884560392 1634667.10006135 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2165-Oct-13 01:11 00:06 Jupiter 1.38025056795404 1.38025008406894 1.38025105185185 1.32469344259414 0.72626902989203 2512095.549585849 6.31323425280048 376.092156498808 257.870594676524 65.8336687141349 2775136.08934416 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2177-Jun-13 03:09 00:09 Jupiter 1.40798408192177 1.40798207495017 1.40798608900582 1.39670128420414 0.864640903627186 2516356.630955892 9.39614049974358 1090.60040534862 131.524242127227 55.5059766003559 2755697.20828532 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2189-Jan-03 18:34 00:14 Jupiter 1.47496918469919 1.47496413821395 1.47497423147619 1.60217738792476 1.19098416506535 2520579.273346979 13.6844321702731 1472.85692279647 48.0989503823073 66.4165534756672 3093939.42076687 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40
2200-Jun-04 17:11 00:18 Jupiter 1.61585359035169 1.6158442692747 1.61586291162231 2.10503698181489 1.83923639529939 2524748.216313479 18.4723268083349 1139.8800523657 6.46282911923283 88.6960808176715 3385926.20335655 T 32 CATAB v2.0f-lin.ifort 2020-Dec-18 02:40:54 2020-Dec-18 02:40

Alternate Designations
 1997 TY7 = 1977 DX9 = 1983 GV1 = 1994 BZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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