ASTROSAT CZTI

Data Quality Report

Orbit 29466

Creation date: 2024-06-27T20:04:23.756941
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/AS1A10_102T08_9000004240_29466cztM0_level2.evt modeM0/AS1A10_102T08_9000004240_29466cztM0_level2_quad_clean.evt
Size (bytes)866,583,36083,885,760
Size826.4 MB 80.0 MB
Events in quadrant A3,266,981583,090
Events in quadrant B3,283,735590,724
Events in quadrant C3,477,315559,834
Events in quadrant D15,760,423335,047

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141072
B0140552
C0146602
D0513752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6734630.935551%
B6734811.202851%
C67341241.841402%
D6734572485.001485%

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 7564 6735 1 1 0.01% 0.01%
B 7564 6735 0 0 0.00% 0.00%
C 7564 6735 0 0 0.00% 0.00%
D 7564 6734 5210 5210 68.88% 77.37%

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 0 13 50751 296.75 831 814 168.3
A 13 254 12629 70.21 831 814 168.3
A 3 137 8252 44.2 831 814 168.3
B 12 111 19662 116.43 824 802 162.0
B 11 111 17969 105.97 824 802 162.0
B 14 111 16198 95.04 824 802 162.0
C 3 233 213914 1134.74 794 799 187.8
C 14 238 137664 728.74 794 799 187.8
C 2 114 16158 81.78 794 799 187.8
D 8 195 9121221 66577.82 565 549 137.0
D 7 80 3086773 22528.39 565 549 137.0
D 1 52 824406 6013.88 565 549 137.0

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