ASTROSAT CZTI

Data Quality Report

Orbit 08529

Creation date: 2024-06-27T15:33:55.251220
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/AS1G07_060T01_9000001200_08529cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08529cztM0_level2_quad_clean.evt
Size (bytes)526,449,60075,044,160
Size502.1 MB 71.6 MB
Events in quadrant A3,752,127440,121
Events in quadrant B4,134,544439,706
Events in quadrant C3,513,062436,454
Events in quadrant D4,023,225423,093

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165173
B01736510
C0159772
D0174792

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76643855.023486%
B76634585.976771%
C76642823.679541%
D76643684.801670%

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 7754 7665 14 14 0.18% 0.18%
B 7754 7665 66 66 0.85% 0.86%
C 7754 7666 0 0 0.00% 0.00%
D 7754 7665 35 35 0.45% 0.46%

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 15 223 130717 687.9 919 896 188.7
A 15 239 42111 218.39 919 896 188.7
A 13 251 21714 110.31 919 896 188.7
B 10 16 319712 1779.1 917 892 179.2
B 0 214 79489 438.59 917 892 179.2
B 15 255 70309 387.37 917 892 179.2
C 13 61 6939 28.62 897 897 211.1
C 8 222 6712 27.54 897 897 211.1
C 14 234 5837 23.4 897 897 211.1
D 1 52 527698 2342.33 889 861 224.9
D 12 233 31429 135.91 889 861 224.9
D 10 187 23454 100.45 889 861 224.9

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