Mario Juric mjuric

First: git tag the package for release. (please also fill out the git "Release" page, making it an official release and giving you a spot to write notes. Writing release notes as we go makes understanding changes much easier down the road!)

Next, for eups:

log into lsst-dev as lsstsw : (without taking along your own ssh github keys!)
ssh -a [email protected]
source bin/setup.sh
rebuild -r sims_tag -r dm_tag lsst_sims lsst_apps (or appropriate DM git tag (12.0.rc1, etc.) and sims git tag (sims_2.2.5, etc): note that these resolve left to right, and any matching tag that is found will be used. Use the git format, not the eups format.). -- note the BUILD ID that comes from the rebuild process.

To convert MPCORB.DAT to a oorb format:

oorb --task=mpcorb --mpcorb=MPCORB.DAT --orb-out=MPCORB.orb

To propagate MPCORB.orb to a desired date:

oorb --task=propagation --orb-in=MPCORB.orb --epoch-mjd-utc=59580.173 --orb-out=MPCORB_START_59580.orb

To generate ephemeris from desired date onwards:

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	;
	; Netatalk 3.x configuration file
	;

	[Global]
	; Global server settings
	log file = /var/log/afpd.log
	;log level = default:debug afpdaemon:debug
	uam list = uams_dhx.so uams_dhx2.so