ASTROSAT CZTI

Data Quality Report

Orbit 15057

Creation date: 2024-06-27T17:03:09.824534
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/AS1T02_060T01_9000002216_15057cztM0_level2.evt modeM0/AS1T02_060T01_9000002216_15057cztM0_level2_quad_clean.evt
Size (bytes)567,696,96077,256,000
Size541.4 MB 73.7 MB
Events in quadrant A3,689,624464,431
Events in quadrant B4,433,886469,709
Events in quadrant C5,116,521452,060
Events in quadrant D3,454,794441,869

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155164
B0177583
C0197203
D0154903

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73402263.079019%
B73403124.250681%
C73402323.160763%
D73401812.465940%

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 7621 7341 0 0 0.00% 0.00%
B 7621 7341 37 37 0.49% 0.50%
C 7621 7342 17 17 0.22% 0.23%
D 7621 7341 9 9 0.12% 0.12%

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 1 162 67072 355.17 915 893 186.3
A 12 189 38975 204.38 915 893 186.3
A 1 178 27013 140.18 915 893 186.3
B 10 245 734424 4141.22 906 883 177.1
B 10 16 99195 555.02 906 883 177.1
B 4 173 40551 223.95 906 883 177.1
C 3 233 1681252 8116.25 880 882 207.0
C 13 61 6259 25.97 880 882 207.0
C 3 232 4142 15.75 880 882 207.0
D 13 249 49518 224.92 884 857 216.3
D 13 104 32759 147.46 884 857 216.3
D 2 234 23731 105.73 884 857 216.3

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