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91624 (1999 TP44)
Classification: Main-belt Asteroid          SPK-ID: 2091624
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01033209697791178 3.7412e-08  
a 3.197617670161954 2.5541e-08 au
q 3.164579574295556 1.1284e-07 au
i 7.451403661517439 4.2969e-06 deg
node 222.4683346350561 2.8948e-05 deg
peri 244.1838796937706 0.00022953 deg
M 138.9709992708196 0.00023017 deg
tp 2458194.268227325813
(2018-Mar-16.76822733)
0.0013313 TDB
period 2088.518033874793
5.72
2.5023e-05
6.851e-08
d
yr
n .1723710277627328 2.0652e-09 deg/d
Q 3.230655766028351 2.5805e-08 au
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:10  

Additional Information
 Earth MOID = 2.188 au 
 Jupiter MOID = 1.78386 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457156.5 (2015-May-14.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01199172648491346 3.7287e-08  
q 3.15966328357725 1.1324e-07 au
tp 2458183.166235532666
(2018-Mar-05.66623553)
0.0011529 TDB
node 222.4906528379216 2.8945e-05 deg
peri 242.2030498994982 0.000199 deg
i 7.45140121855795 4.2972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-10-03  
   last obs. used      2020-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54713  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:39:10  

Additional Information
 Jupiter MOID = 1.78386 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.390336443017097E-15 -4.126496952319383E-15 4.475281693352821E-12 -6.386339747018922E-15 7.138052947610855E-13 4.404233635319284E-16
q -4.126496952319383E-15 1.282381133386992E-14 -1.966007239372057E-12 1.948448136939247E-14 -2.274447309897779E-13 -1.389664714637301E-15
tp 4.475281693352821E-12 -1.966007239372057E-12 1.329220014973159E-6 5.223870528870175E-11 2.269948774474072E-7 -3.12034527182917E-11
node -6.386339747018922E-15 1.948448136939247E-14 5.223870528870175E-11 8.377889343132923E-10 -8.212899439818973E-10 3.569473299173285E-12
peri 7.138052947610855E-13 -2.274447309897779E-13 2.269948774474072E-7 -8.212899439818973E-10 3.960160768052623E-8 -8.901063514985013E-12
i 4.404233635319284E-16 -1.389664714637301E-15 -3.12034527182917E-11 3.569473299173285E-12 -8.901063514985013E-12 1.846627145069311E-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 14.5   n/a MPO432453  
diameter diameter 8.052 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91624 (1999 TP44)          Discovered 1999-Oct-03 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ 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
1988-Nov-21 07:48 < 00:01 Jupiter 1.89896908841207 1.89896859666615 1.8989695801582 4.09581618985914 3.98542639876826 2447486.825282337 0.894964772164852 59.029093568955 17.7965346450551 75.9018964492869 4212892.04992606 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
1999-Nov-24 09:24 < 00:01 Jupiter 1.79835111383085 1.79835068377836 1.79835154388333 3.75171706859194 3.62400081648267 2451506.891778488 0.545288697891175 49.2392804830122 17.3102961682955 82.900447949696 3443461.55987386 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2010-Nov-22 16:15 < 00:01 Jupiter 1.7943627740906 1.79436230732932 1.79436324085178 3.30860178031587 3.16271290342551 2455523.177427404 0.254203897517669 38.9589155284135 18.2143319304229 -83.7214595281385 3030537.99371045 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2021-Nov-09 11:03 < 00:01 Jupiter 1.86756123309637 1.86756070163979 1.86756176455306 3.02719253360415 2.87346571542412 2459527.960723519 0.384457034877018 40.2100163221416 13.4964598146122 -66.1189289197451 3134049.73538724 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2032-Oct-23 08:34 < 00:01 Jupiter 1.96955734342417 1.96955680029185 1.9695578865565 3.29803046408354 3.16494713059847 2463528.856612512 0.724891188884046 46.0200973023816 16.8473394985949 -71.8908933722533 3085101.82405082 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2143-Jan-19 12:21 00:04 Jupiter 1.87861141265544 1.87861014924139 1.87861267607804 3.99841981671469 3.88401946484121 2503793.014782398 4.03050947412013 222.362786347237 17.9312504115689 75.1453028882705 3973772.63446196 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2154-Jan-22 18:03 00:04 Jupiter 1.78437746088801 1.78437697482735 1.78437794695447 3.7076828162136 3.57736438237927 2507814.251943770 4.38889713538098 291.088805310696 16.9718712406827 88.3872395088261 3400327.5348803 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2165-Jan-20 21:39 00:05 Jupiter 1.79625407167549 1.79625314891654 1.79625499444801 3.327712883228 3.1828563034984 2511830.402041927 4.92195971629204 285.453253815373 16.5559008689443 -80.0391800193053 3227537.09230178 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2176-Jan-09 12:24 00:06 Jupiter 1.88356303344214 1.88356153394144 1.88356453295322 3.10049933437667 2.95189987606269 2515836.016484383 5.49370109280468 245.813152325655 13.0888186769314 -73.5896036791506 3565412.36780253 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39
2186-Dec-23 13:59 00:06 Jupiter 1.99208314281772 1.99208156469345 1.99208472094391 3.38237239981396 3.25423636698319 2519837.082703171 5.80744868151489 134.640748429709 16.4756733718175 -64.1711084062844 2570210.07618074 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:39:12 2020-Nov-12 20:39

Alternate Designations
 1999 TP44 = 2002 GT39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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