ASTROSAT CZTI

Data Quality Report

Orbit 22462

Creation date: 2024-06-27T18:41:25.584070
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/AS1A07_065T01_9000003338_22462cztM0_level2.evt modeM0/AS1A07_065T01_9000003338_22462cztM0_level2_quad_clean.evt
Size (bytes)501,765,12069,310,080
Size478.5 MB 66.1 MB
Events in quadrant A3,368,538420,307
Events in quadrant B4,489,963411,085
Events in quadrant C3,456,499406,966
Events in quadrant D3,438,328404,975

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142942
B0178592
C0145793
D0147072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6527650.995863%
B65271472.252183%
C65261261.930739%
D6526711.087956%

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 7682 6527 0 0 0.00% 0.00%
B 7682 6527 32 32 0.42% 0.49%
C 7681 6526 0 0 0.00% 0.00%
D 7681 6526 13 13 0.17% 0.20%

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 9674 49.98 872 853 176.5
A 0 226 7564 38.02 872 853 176.5
A 3 137 7315 36.61 872 853 176.5
B 0 244 1023482 6284.42 863 843 162.7
B 0 190 42761 257.6 863 843 162.7
B 12 111 19214 112.9 863 843 162.7
C 14 238 135006 678.5 846 852 197.7
C 0 10 12320 58.0 846 852 197.7
C 9 54 11433 53.51 846 852 197.7
D 1 52 99437 475.03 861 837 207.6
D 2 234 29550 138.33 861 837 207.6
D 13 249 24202 112.57 861 837 207.6

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