ASTROSAT CZTI

Data Quality Report

Orbit 30672

Creation date: 2024-06-27T20:18:25.895494
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/AS1A10_094T80_9000004424_30672cztM0_level2.evt modeM0/AS1A10_094T80_9000004424_30672cztM0_level2_quad_clean.evt
Size (bytes)225,774,72049,965,120
Size215.3 MB 47.7 MB
Events in quadrant A1,390,744354,393
Events in quadrant B1,818,575349,304
Events in quadrant C1,306,711335,303
Events in quadrant D2,182,626326,710

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055091
B066291
C053251
D079962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2029854.189256%
B20291256.160670%
C20291396.850665%
D20281607.889546%

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 3374 2030 12 12 0.36% 0.59%
B 3374 2030 36 36 1.07% 1.77%
C 3374 2030 0 0 0.00% 0.00%
D 3373 2029 45 45 1.33% 2.22%

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 15 174 125290 2042.7 305 300 61.2
A 0 13 77954 1269.09 305 300 61.2
A 8 192 9814 155.49 305 300 61.2
B 6 159 542162 9583.09 294 287 56.5
B 4 81 106401 1876.63 294 287 56.5
B 12 111 6299 106.32 294 287 56.5
C 14 238 49169 718.34 292 295 68.0
C 3 233 44233 645.79 292 295 68.0
C 0 10 41970 612.53 292 295 68.0
D 8 195 916806 13221.67 295 288 69.3
D 12 218 51773 742.72 295 288 69.3
D 2 250 27593 393.9 295 288 69.3

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