ASTROSAT CZTI

Data Quality Report

Orbit 22612

Creation date: 2024-06-27T18:43:33.546834
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_049T01_9000003358_22612cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22612cztM0_level2_quad_clean.evt
Size (bytes)516,424,32096,145,920
Size492.5 MB 91.7 MB
Events in quadrant A3,219,503622,955
Events in quadrant B3,327,936631,390
Events in quadrant C3,305,840600,067
Events in quadrant D5,325,151583,317

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140422
B0142302
C0141153
D0203932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6807460.675775%
B6808510.749119%
C6807951.395622%
D68073675.391509%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8777 6809 0 0 0.00% 0.00%
B 8778 6810 1 1 0.01% 0.01%
C 8777 6809 0 0 0.00% 0.00%
D 8777 6809 302 302 3.44% 4.44%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 10981 60.6 834 815 167.7
A 0 226 7279 38.53 834 815 167.7
A 3 137 7206 38.1 834 815 167.7
B 0 229 23149 140.58 835 814 158.9
B 12 111 18933 114.05 835 814 158.9
B 11 111 16792 100.57 835 814 158.9
C 14 238 125785 660.43 805 811 189.2
C 0 10 20288 102.93 805 811 189.2
C 10 22 9796 47.48 805 811 189.2
D 1 52 1478482 7507.35 805 784 196.8
D 7 238 681887 3460.3 805 784 196.8
D 12 227 30800 152.49 805 784 196.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter