Asteroid 52760
this is in HORIZONS
Code:
telnet horizons.jpl.nasa.gov 6775
hit <enter>
Code:
JPL Horizons, version 3.87
Type `?' for brief intro, `?!' for more details
System news updated Mar 10, 2014
Horizons>
type in 52760
Code:
JPL Horizons, version 3.87
Type `?' for brief intro, `?!' for more details
System news updated Mar 10, 2014
Horizons> 52760
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JPL/HORIZONS 52760 (1998 ML14) 2014-Apr-01 12:53:39
Rec #: 52760 (+COV) Soln.date: 2014-Mar-22_11:55:06 # obs: 588 (1998-2014)
FK5/J2000.0 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs):
EPOCH= 2455411.5 ! 2010-Aug-03.00 (CT) Residual RMS= .39079
EC= .6206403612479247 QR= .9146906665047532 TP= 2455181.8787248693
OM= 338.9157132506253 W= 20.12108463944722 IN= 2.433080268528047
A= 2.411143867369969 MA= 60.44794087990935 ADIST= 3.907597068235185
PER= 3.74406 N= .263250603 ANGMOM= .020944109
DAN= .93658 DDN= 3.55285 L= 359.0201117
B= .8367706 MOID= .0157662 TP= 2009-Dec-16.3787248693
Asteroid physical parameters (km, seconds, rotational period in hours):
GM= n.a. RAD= .500 ROTPER= 14.98
H= 17.5 G= .150 B-V= n.a.
ALBEDO= n.a. STYP= n.a.
ASTEROID comments:
1: soln ref.= JPL#127, PHA OCC=0 radar(11 delay, 7 Dop.)
2: source=ORB
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Select ... [A]pproaches, [E]phemeris, [F]tp,[M]ail,[R]edisplay, [S]PK,?,<cr>:
you need the SPK , so type in < s > and hit < enter >
Code:
Searching for SPK object ID number ... found.
Assigned SPK object ID: 2052760
Enter your Internet e-mail address [?]:
type in your address , and confirm the challenge with "yes " < y >
Code:
SPK text transfer format [ YES, NO, ? ] :
yes you want the xfr ( and use "tobin" in cspice on YOUR operating system )
Code:
SPK object START [ t >= 1900-Jan-01, ? ] :
you want the full range so use that start date
Type in 1900-Jan-01 and hit < enter >
Code:
SPK object STOP [ t <= 2101-Jan-01, ? ] :
SPK object STOP [ t <= 2101-Jan-01, ? ] :
you want the full range so type in
2101-Jan-01 and hit < enter >
Code:
Current integration step:
2415152.88740 1900 May 13.38740 -1.0328378
Current integration step:
2488282.19109 2100 Aug 01.69109 1.2290876
Binary SPK file created.
Add more objects to file [ YES, NO, ? ] :
say NO -- < n > and hit < enter >
Code:
Converting SPK to portable transfer format .... standby
After FTP transfer, convert file back to binary form.
You have 30 minutes to retrieve the following by anonymous FTP:
Machine name: ssd.jpl.nasa.gov
Directory : cd to "/pub/ssd/"
File name : wld10805.15
File type : ASCII (transfer format)
Full path : ftp://ssd.jpl.nasa.gov/pub/ssd/wld?????.15
Select ... [E]phemeris, [M]ail, [R]edisplay, ?, <cr>:
the text based kernel is at this ftp address
"ftp://ssd.jpl.nasa.gov/pub/ssd/wld?????.15"
( the ?????? is a unique identifier for the file )
most web browsers have NO problems in using FTP for download
that address IS the text kernel
so use "Save page AS!!! "
and save it as
52760.xfr oruse wget or ftp or curl, or your favorite tool to save the link
then run "tobin on it
Code:
cd /to the /location/you /saved /the/file
tobin 52762.xfr 52762.bsp
and copy the 2.7 Meg. binary file to the "data" folder in the add on
the ssc should look something like this
Code:
"52760" "Sol"
{
Class "asteroid"
Mesh "52760.bin.cmod" # this is MY testing mesh , use what you want
# Texture "" # coded into the cmod
Orientation [ 90 1 0 0 ]
Radius 0.5 # approx. it is about 1 KM in diameter
Albedo 0.34 # random needs to be refined still
OrbitFrame { EclipticJ2000 { Center "Sol" }}
Beginning "1900 01 01 00:00:00.000"
Ending "2101 01 01 00:00:00.000"
SpiceOrbit
{
Kernel "52760.bsp"
Target "2052760"
Origin "10"
Period 4
BoundingRadius 1e10
}
PrecessingRotation
{
Inclination 20 # random
AscendingNode 1 # random
Period 14.98 # JPL Small-Body Database
PrecessionPeriod 0.02 # random
}
}

drop in add on
reuploaded to fix bug ( z axis off by -90 deg)52760.tar.gz - 15.5 Meg
( cmod,bsp,ssc,2k texture,4k normalmap )
https://drive.google.com/file/d/0B6ZYAd ... sp=sharingor
use the original in the "shape model " thread
viewtopic.php?f=4&t=636