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UKIDSS Survey Status

UKIRT Infrared Deep Sky Survey Operations

This page gives top-level scheduling and completion information relevant to UKIRT execution of the UKIDSS surveys. The statistics are updated daily, except where otherwise stated. For a graphical representation of survey progress (generated from reduced data at CASU) and other product statistics, click here.

Updated: 2008-06-18 UT

This is the final update for this UKIDSS block. WFCAM is now off the telescope.
UKIDSS observations will resume on September 15th, 2008.

Upcoming deadlines

1) ASAP: Disable all projects that do not need to be observed on the next wfcam block.
2) August 15th, 2008: Request new projects, indicating title and provisional allocation.
3) September 7th, 2008: Submit new MSBs.
4) September 15th, 2008: Start of new UKIDSS block.

Target statistics

This table gives, for the current WFCAM block, the total time share per survey appropriate to the current block (right hand column), the time used on survey MSBs to date (second column). The actual time used, and hence the remaining target, is subject to observing conditions. This table informs global priority factors applied to the various surveys later in this page. Updated weekly (Thursday HST).

Survey	Plan share for the current block (hours)	Plan share for the current block (%)	Total OMP time allocation for the current block so far (hours)¹	Total OMP time allocation for the current block so far (%)	Time used in current block (hours)²	Time used in current block (%)	Fraction of share used (%)
DXS	67	16.7	135	28.4	72.4	19.5	108.1
GCS	27	6.7	20	4.2	20.8	5.6	77.0
GPS	40	10.0	41	8.6	58.25	15.7	145.6
LAS	267	66.6	279.5	58.8	220.12	59.2	82.4
UDS	0	0.0		0.0		0.0	-0.0
Total	401		475.5		371.57

¹Note that these numbers should ultimately agree with those of the two-year plan listed in the first column.
²Note that this column currently includes calibration overheads. This will be changed in the near future, when calibration observations are no longer charged to UKIDSS projects.

A separate page shows the outcome of the UKIDSS block in terms of the original allocation given to each survey at the beginning of the semester.

Time used in each survey in the last 7 nights

Survey	Hours observed
B2	0.40
DXS20	1.10
GPS13C	1.30
LAS15B	2.75
LAS2D	0.90

RA Coverage

Currently active UKIDSS MSBs have the following distribution in RA (normally updated weekly, Thursday HST):

RA Coverage by Survey

Plotting remaining active MSB count per RA hour. Updated weekly (Thursday HST). Projects shaded in red have a global priority factor applied (see the detailed table in "completion rates and actions"). "Observable" denotes RAs observable for at least one hour after sunset or before sunrise.

RA	00	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23
Observable
DXS18												17
DXS19																	10
DXS20																							09
GCS24																	11	02
GPS13C																			03	08	01
LAS10C											03
LAS12B											05	28	10
LAS15B															27	09	05
LAS1D													02	01
LAS2D														02	01
Total			01			01					09	45	12	03	27	09	25	02	03	08	01		09

Completion Rates and Actions

Currently active surveys are listed below. Note that completion rates are relative to allocated times, some of which are nominal at this point.

Project ID	Description	R.A.	Global priority factor	Comments / Recent Actions	Long-term strategy	Completion (%)
DXS19	ELAIS-N1	16h	f=-2	K only, 1 hour MSBs. Thin cirrus, Kzen<1.0. Runs into oscillation problems if run at HA>2.5; airmass constraints have been added to avoid this problem.HIGHEST PRIORITY. NO more than 1hour per night if photometric. Unlimited if thin cirrus.		59
DXS20	SA22	22h	f=0	Needs Kzen<1.0. Thin cirrus. Later in the semester. Replaces DXS14.		69
DXS15	UDS	2h	f=0			23
DXS17	XMM-LSS	2h	f=0	K only. 60 minutes MSBs. Thin cirrus. Kzen<1.2		100
DXS18	Lockman Hole	11h	f=-1	J and K. 60 minutes MSBs. Kzen<1 (K) or <0.9 (J). Thin cirrus.		42
GCS19	Complete Pleiades	3-4h	f=-2	ZYJ (70 minutes) + HK (29/43 minutes) separate MSB. Photometric, dark. Needs monitoring on synchronisation.		57
GCS20	Complete AlphaPer	3-4h	f=-1	ZYJ (40 minutes) + HK (40 minutes) separate MSB. Photometric, dark. Needs monitoring on synchronisation.		13
GCS21	Complete TauAuri	3-6h	f=0	K band only (70 minutes).Thin cirrus. Only when conditions are marginal.		79
GCS22	Praesepe	8-9h	f=0	Individual filter MSBs (30 minutes) to complete GCS11. Photometric		8
GCS23	Orion	5-6h	f=0	HK. Photrometric. 30 minutes. Kzen<1.0		33
GCS24	UpperSco	16-17h	f=0	HK. Photrometric. 30 minutes. Kzen<1.0		32
GCS25	ComaBer	12-13h	f=0	1 MSB. 27 minutes. Photometric. COMPLETE.		100
GPS9C	Continuation of GPS8	4-7h	f=-2	JHK tiles (20 minutes). Photometric, Kzen<1.0		74
GPS13C	Summer plane	18-21h	f=-1	20 minutes JHK. Photometric. Kzen<0.9.		79
LAS1D	Virgo Completion 08A	12-13h	f=-3	40 minutes. HK + YJ. Photometric. Kzen<1.1. Only 5 YJ MSBs left. HIGH PRIORITY.		68
LAS2D	Equator N3 Completion	13-15h	f=-3	40 minutes. HK + YJ. Photometric. 0.9 < Kzen < 1.3. Only 3 YJ MSB left. HIGH PRIORITY.		78
LAS8C	Southern Stripe part 4 cont 07B	2h	f=-2	YJ+HK separate MSB. Photometric, Kzen<1.1. Needs monitoring on synchronization. See Note 1.		46
LAS9C	2year Equator Cont 08A	8-10h	f=-2	30 min. Kzen<0.9. J,K.Y,J separate MSBs. Photometric. See Note 1.		56
LAS10C	UKIDSS LAS 2yr Equator n1 08A	9-10h	f=0	40 min. J Y and H separate MSBs. Kzen<1.1. Photometric		70
LAS12B	UKIDSS LAS 2yr Equator s2	10-12h	f=-3	37 min. HK+YJ. Kzen<1.1. Photometric. Several YJ MSBs to be done. Avoid HK if possible.		62
LAS15B	2year Equator s4 08A	15-16h	f=-2	40 min. HK + YJ. Kzen<1.1. Photometric. At this time, this is a queue filler. Only if NO other LAS projects are within reach.		67
LAS16	UKIDSS LAS2yr Equatorial	12-14h	f=-3	37 min. HK+YJ. Kzen<1.1. Photometric. COMPLETE		100
UDS5	UDS 07B JHK	2h	f=-4	Always top priority when observable. Also, look for short single paw observations if there are small time gaps to fill. In that case, strictly follow priorities (to achieve completeness of the tiles)		45

TABLE NOTES:

Note 1: For ALL the LAS and DXS projects, YJ has now the highest priority, even if the MSBs do not show up at the top of the queue. Jsky constraints have been relaxed to Jsky>15.5 for YJ observations.

'i+' denotes increased internal priority.
'i=n' denotes internal priority set to 'n'.
'f=-n' denotes a raising of n in global priority factor ('fudge factor'). The more negative the value of n, the higher the priority in the queue.
GENERAL NOTES:
The Pie Chart was generated using the Pie Chart Java Applet written by Tom Van Vleck. See: Pie Chart for more information.

Contact: L. Rizzi. Updated: Wed Jun 18 11:29:12 HST 2008

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