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JPL Small-Body Database Browser
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91595 (1999 TZ9)
Classification: Main-belt Asteroid          SPK-ID: 2091595
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1995599510299879 4.4333e-08  
a 2.799107917461711 1.3928e-08 au
q 2.240518078525401 1.2485e-07 au
i 3.475911369034759 5.4104e-06 deg
node 53.971802515238 7.7684e-05 deg
peri 19.44385910591308 7.9278e-05 deg
M 106.2676974778092 1.3241e-05 deg
tp 2458495.575247972085
(2019-Jan-12.07524797)
6.2691e-05 TDB
period 1710.518953965357
4.68
1.2767e-05
3.495e-08
d
yr
n .2104624442573063 1.5709e-09 deg/d
Q 3.357697756398022 1.6708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      740  
   data-arc span      8313 days (22.76 yr)  
   first obs. used      1997-05-01  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53143  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:33:56  

Additional Information
 Earth MOID = 1.25572 au 
 Jupiter MOID = 1.93358 au 
 T_jup = 3.294 
[ 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 15.2   n/a MPO337941  
diameter diameter 2.338 km 0.398 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.295   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91595 (1999 TZ9)          Discovered 1999-Oct-09 by Comba, P. G. at Prescott
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
1960-Nov-08 16:17 00:01 Jupiter 1.94775342972584 1.94775301930154 1.94775384015002 1.96802660034197 1.73302788143897 2437247.178711518 1.24832672628668 65.9866038379139 19.2570626112601 88.9130119109685 2281298.41513808 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34
1984-Jan-29 06:14 < 00:01 Jupiter 1.94498053384725 1.94498017675367 1.94498089094071 1.84262140520886 1.58879533501173 2445728.759998702 0.723211342783783 68.8949324139664 25.7919767298826 81.6379351848616 2385155.38759925 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34
2007-Apr-18 13:14 < 00:01 Jupiter 1.98398070116976 1.98398027153348 1.98398113080592 1.91202765948852 1.67391401284189 2454209.051193358 0.317702867850848 75.8034882740537 23.2005391303021 82.7311547354047 2126048.79805495 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34
2139-Mar-21 07:41 00:03 Jupiter 1.96695721294733 1.96695652638607 1.96695789950871 2.15834979036342 1.94864625452423 2502392.820245184 2.53025733836239 85.7218463570409 17.7138417923654 -82.1500450396811 1658907.56921466 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34
2162-Jun-08 09:04 00:03 Jupiter 1.93455410036548 1.93455371283299 1.93455448789809 1.87661283277452 1.62665253368042 2510872.878012933 2.98916727568502 102.357094195344 32.437313129817 -76.9095522999833 2145077.10952791 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34
2185-Aug-27 00:16 00:04 Jupiter 1.94590782631236 1.94590717344523 1.94590847917927 1.82207874596182 1.56505686276274 2519353.511308255 3.52407939028131 86.809765658985 31.0167436911528 88.8581319564538 2111366.95905166 T 24 CATAB v2.0f-lin.ifort 2020-Feb-23 22:34:05 2020-Feb-23 22:34

Alternate Designations
 1999 TZ9 = 1997 JW18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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