ASTROSAT CZTI

Data Quality Report

Orbit 23907

Creation date: 2024-06-27T18:59:57.991381
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_142T01_9000003540_23907cztM0_level2.evt modeM0/AS1A07_142T01_9000003540_23907cztM0_level2_quad_clean.evt
Size (bytes)193,170,24047,304,000
Size184.2 MB 45.1 MB
Events in quadrant A1,288,658320,364
Events in quadrant B1,330,438324,750
Events in quadrant C1,336,366310,675
Events in quadrant D1,699,615274,166

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114
B0115
C0114
D0106

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02606120285
B02637720549
C02614320323
D03697030270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265207
B0263204
C0267207
D0268209

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A286980.278843%
B2884100.346741%
C2890250.865052%
D2631481.824401%

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 15369 3474 0 0 0.00% 0.00%
B 15381 3508 0 0 0.00% 0.00%
C 15394 3539 0 0 0.00% 0.00%
D 15384 3230 15 15 0.10% 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 13 254 4611 62.38 334 327 68.7
A 3 137 2927 37.86 334 327 68.7
A 0 226 2858 36.85 334 327 68.7
B 12 111 7703 109.97 338 329 67.1
B 11 111 6751 95.77 338 329 67.1
B 14 111 5971 84.14 338 329 67.1
C 14 238 51330 641.26 328 330 79.5
C 13 61 2274 24.44 328 330 79.5
C 7 247 1551 15.35 328 330 79.5
D 7 238 255606 3462.13 296 288 73.7
D 12 218 175194 2371.74 296 288 73.7
D 1 52 68970 931.33 296 288 73.7

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