# $Id: balancer_include.php,v 1.12 2005/10/10 20:59:01 jdgibson Exp $

/* OVERALL TELESCOPE MOMENTS (These moments are always included in the telescope moment calculations.) */
/* This is the bare telescope moment without anything attached. */
/* The -12260.0 in-lbs fudge factor is from Dan. Feb 16, 2005. */
/*
* Adding "tension brackets" to basic telescope moment:
* 216 lbs x 300 in = 65000 JDG Apr 5, 2007
*/
$BasicTelescopeMoment = -657845.4 - 12260 + 65000;

/* Notes from Dennis on 10/10/2005:
* The bare secondary hub weights 540 lbs at a distance of 340 inches.
* The total weight of the spiders is 274 lbs at a distance of 340 inches.
* The turnbuckles weight 160 lbs at a distance of 340 inches.
* The dual actuators weight 47 lbs each and there are 54 of them.
* The single actuators weight 19 lbs and there are 50 of them.
*
* It is 55 inches from the actuator plate to the center line of the elevation axis.
* It is 78 inches from the ventilation covers to the center line of the elevation axis.
* It is 85 inches from the rotator flange to the center line of the elevation axis.
* It is 150 inches from the lead weight to the center line of the elevation axis.
*/

/* Here are some notes on the counterweights used in balancing the telescope:
*
* 1) balancer.php uses a total moment for the counterweights at maximum travel of
* 491880 in-lbs. Here is how that number is calculated.
* 2) The two counterweights are located on opposite sides of the telescope and are symmetric.
* 3) The maximum possbile travel for the counterweights is 120 inches. (Minimum transport
is at 0 inches.)
* 4) The lead weights (or "plates") in the counterweight boxes are in the shape of an "L".
* Two of the weights join to make a layer 1-inch thick.
* 5) We typically have 30 plates, or 15 inches of weights on each side of the telescope. (The
boxes are around 16 inches tall, so they are almost completely filled.)
* 6) The boxes that hold the plates weight 177.5 lbs each.
* 7) So, (30 plates x 62.4 lbs/plate) + 177.5 lbs = 2049.5 lbs on each side.
* 8) Since we have the same configuration on both sides of the telescope:
* (2049.5 lbs x 2) = 4099 lbs.
* 9) At maximum extension, the total moment for the counterweights is:
* 4099 lbs * 120 in = 491880 in-lbs.
* 10) At minimum extension, the total moment is:
* 4099 lbs * 0 in = 0 in-lbs.
* 11) The counterweight "setting" is a number between 0 and 120, reflecting
* the number of inches of counterweight moment.
*
* JDG 10/10/2005
*/

/* Lamp boxes: 4 boxes x 150 lbs each at 215" moment arm = +129,000 in-lbs: Last update, Mar. 15, 2004 */
/* $LampBoxesMoment = 129000.0; */
/* Lamp boxes removed: moment set to 0.0: Last update, May 10, 2004 */
$LampBoxesMoment = 0.0;

/* Baffle anchors: 4 anchors x 50 lbs each at 60" moment arm = +12,000 in-lbs: Last update, Mar. 15, 2004 */
$BaffleAnchorsMoment = 12000.0;

/* Lead ballast: 250 lbs of lead at -156" moment arm = -39,000 in-lbs: Last update, Mar. 15, 2004 */
/* $LeadBallastMoment = -39000.0; */
/* Lead ballast removed: moment set to 0.0: Last update, May 10, 2004 */
$LeadBallastMoment = 0.0;

/* COUNTERWEIGHT MOMENTS */
/* The East Fixed Counterweight moment: Last update, Sept. 16, 2003 */
$EastFixedMoment = 236800.0;
/* The West Fixed Counterweight moment: Last update, Sept. 16, 2003 */
$WestFixedMoment = 197728.0;
/* The East Rails Counterweight moment: Last update, Sept. 16, 2003 */
$EastRailsMoment = 60480.0;
/* The West Rails Counterweight moment: Last update, Sept. 16, 2003 */
$WestRailsMoment = 60480.0;

/* SECONDARY MOMENTS */
/* The F/5 Secondary Mirror moment: Last update, Dec. 9, 2003 */
$F5MirrorMoment = 544500.0;
/* The F/9 Secondary Mirror moment: Last update, Dec 9, 2003 */
$F9MirrorMoment = 254962.5;
/* The F/15 Secondary Mirror moment: Last update, Sept. 16, 2003 */
$F15MirrorMoment = 134400.0;

/* SECONDARY BAFFLES MOMENTS */
/* The F/5 Secondary Baffle moment: Last update, Dec. 9, 2003 */
$F5SecondaryBaffleMoment = 12600.0;
/* The F/9 Secondary Baffle moment: Last update, Sept. 16, 2003 */
$F9SecondaryBaffleMoment = 0.0;

/* LASER OPTICS MOMENTS */
/* Last update, Feb 16, 2005 */
$LaserHubOptics = 340.0 * 310.0;
/* Dan says that the dummy weight is 35 lbs less than the real LaserHubOptics
* and has a moment length of 320 inches. Feb 16, 2005.
*/
$LaserHubOpticsDummy = 305.0 * 320.0;
/* Last update, Feb 16, 2005 */
$LaserPupilBox = 125.0 * 280.0;
/* Last update, Feb 16, 2005 */
$LaserBox = 325.0 * 60.0;

/* MID-LEVEL BAFFLE MOMEMT */
/* The Mid-Level Baffle moment: Last update, Mar 15, 2004 */
/* Mid-level baffle: 200 lbs at 60" moment arm = +6,000 in-lb */
$MidLevelBaffleMoment = 6000.0;

/* PRIMARY BAFFLES MOMENTS */
/* The F/5 Primary Baffle moment: Last update, Sept. 16, 2003 */
$F5PrimaryBaffleMoment = 0.0;
/* The F/9 Primary Baffle moment: Last update, Sept. 16, 2003" */
$F9PrimaryBaffleMoment = 0.0;

/* CORRECTOR MOMENTS */
/* The F/5 Spectoscopic Corrector moment: Last update, July 14, 2004 */
$F5SpecCorrectorMoment = -53073.0; /* Value prior to 7/14/2004 was -54100.0 */
/* The F/5 Imager Corrector moment: Last update, July 14, 2004 */
$F5ImagerCorrectorMoment = -41269.0; /* Value prior to 7/14/2004 was 0.0 */

/* GUIDER AND RELATED DEVICES MOMENTS */
/* The SAO WFS Guider moment: Last update, May, 2003 */
$SAO_WFSMoment = -59000.0;
/* The F/9 Topbox Guider moment: Last update, Sept. 16, 2003 */
$F9TopBoxMoment = -42300.0;
/* The F/15 Topbox Guider moment: Last update, Sept. 16, 2003 */
/* This is the Natural Guide Star f/15 (NGS) topbox. There is now a second
* f/15 laser guide start topbox that we don't have the moment for yet.
* JDG April 4, 2007
*/
$F15TopBoxMoment = -175000.0;
/*
* F15 topbox is really the NGS (natural guide star) F15 topbox
* The LGS F15 Topbox weights 2300 lbs, but we don't know its moment-arm.
* JDG 4 Apr 2007
*/
$NGSF15TopBoxMoment = -175000.0;
/* Ricardo wants this in here, but will correct it later. 4/11/2007 */
$LGSF15TopBoxMoment = -175000.0;

/* The RAT Guider moment: Last update, Sept. 16, 2003 */
$RATMoment = -23355.0;

/* INSTRUMENTS MOMENTS */
/* The Aries Instrument moment: Last update, May 3, 2004 */
/* Old Aries moment:
* $AriesMoment = -72000.0;
*/
/* New Aries instrument moment after the unit has been upgraded. Apr 5, 2007
* > Today, Ken removed six of the 28-lbs lead weights in order to better
* > balance the telescope with Aries mounted. So, 6 x 28 = 168 lbs.
* >
* > Creighton said the moment distance for these weights is 154 inches.
* >
* > So, 168 lbs x 154 in = 25872 in-lbs for the moment.
* >
* > The current moment for Aries in the "balancer" GUI is: -72000 in-lbs.
* >
* > A new moment value would be: -72000 + -25872 = -97872 in-lbs.
*/
$AriesMoment = -97872.0;

/* The Blue Channel Instrument moment: Last update, Dec 16, 2004 */
$BlueChannelMoment = -125800.0;
/* The Flamingos Instrument moment: Last update, February, 2003 */
$FlamingosMoment = -170350.0;
/* The Hectospec Instrument moment: Last update, Dec. 9, 2003 */
$HectospecMoment = -449625.0;
/* The MiniCam Instrument moment: Last update, May, 2003 */
$MiniCamMoment = -285412.5;
/* The MegaCam Instrument moment: Last update, Dec. 9, 2003 */
$MegaCamMoment = -370032.0;
/* The Mirac/Blinc Instrument moment: Last update, May, 2003 */
$MiracBlincMoment = -39400.0;
/* The Pisces Instrument moment: Last update, May, 2003 */
$PiscesMoment = -15410.0;
/* The RatCam Instrument moment: Last update, Sept. 16, 2003 */
$RatCamMoment = 0.0;
/* The Red Channel Instrument moment: Last update, July, 2003 */
$RedChannelMoment = -144280.0;
/* The SPOL Instrument moment: Last update, Dec. 16, 2004 */
$SPOLMoment = -18500.0;
/* The SWIRC Instrument moment: Last update, July 6, 2004 */
$SWIRCMoment = -71500;

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