ASTROSAT CZTI

Data Quality Report

Orbit 07787

Creation date: 2024-06-27T15:23:59.880764
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/AS1G06_169T01_9000001070_07787cztM0_level2.evt modeM0/AS1G06_169T01_9000001070_07787cztM0_level2_quad_clean.evt
Size (bytes)464,011,20071,210,880
Size442.5 MB 67.9 MB
Events in quadrant A3,248,859427,841
Events in quadrant B3,363,107438,531
Events in quadrant C3,232,318420,953
Events in quadrant D3,751,150399,692

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139263
B0141102
C0139622
D0152942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6733540.802020%
B6733761.128769%
C6733260.386158%
D6733500.742611%

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 9313 6734 0 0 0.00% 0.00%
B 9313 6734 1 1 0.01% 0.01%
C 9313 6733 0 0 0.00% 0.00%
D 9313 6735 14 14 0.15% 0.21%

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 0 226 8059 42.07 844 826 171.9
A 12 194 7652 39.71 844 826 171.9
A 13 254 2985 12.56 844 826 171.9
B 12 111 16483 96.8 854 834 161.7
B 4 81 13391 77.68 854 834 161.7
B 11 111 12890 74.58 854 834 161.7
C 1 16 44603 231.32 817 821 189.3
C 13 61 6177 28.3 817 821 189.3
C 12 4 2957 11.29 817 821 189.3
D 1 52 424763 2149.02 807 780 197.3
D 12 221 128288 646.29 807 780 197.3
D 2 152 47813 238.39 807 780 197.3

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