ASTROSAT CZTI

Data Quality Report

Orbit 19062

Creation date: 2024-06-27T17:58:38.298493
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/AS1A05_046T01_9000002834_19062cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19062cztM0_level2_quad_clean.evt
Size (bytes)485,127,360106,845,120
Size462.7 MB 101.9 MB
Events in quadrant A3,160,012701,367
Events in quadrant B3,438,006732,876
Events in quadrant C3,296,625705,754
Events in quadrant D4,376,263662,688

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132272
B0140662
C0135872
D0170392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6208470.757088%
B62081362.190722%
C6209901.449509%
D62082013.237758%

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 8778 6210 0 0 0.00% 0.00%
B 8778 6210 29 29 0.33% 0.47%
C 8779 6211 0 0 0.00% 0.00%
D 8778 6210 160 160 1.82% 2.58%

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 7173 38.58 820 804 165.1
A 0 226 7026 37.69 820 804 165.1
A 3 137 6006 31.51 820 804 165.1
B 7 220 119429 771.24 826 808 153.8
B 3 112 34403 218.42 826 808 153.8
B 0 189 29240 184.86 826 808 153.8
C 14 238 125444 667.76 803 811 186.6
C 3 233 37533 196.75 803 811 186.6
C 13 61 5565 25.47 803 811 186.6
D 1 20 1134829 5952.76 792 772 190.5
D 1 52 155339 811.33 792 772 190.5
D 10 253 30956 158.44 792 772 190.5

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