ASTROSAT CZTI

Data Quality Report

Orbit 23044

Creation date: 2024-06-27T18:49:46.127210
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_054T01_9000003406_23044cztM0_level2.evt modeM0/AS1A07_054T01_9000003406_23044cztM0_level2_quad_clean.evt
Size (bytes)100,713,60030,600,000
Size96.0 MB 29.2 MB
Events in quadrant A658,478210,716
Events in quadrant B716,261217,820
Events in quadrant C774,511199,442
Events in quadrant D805,915197,201

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027881
B029341
C030991
D032591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A134910.074129%
B134950.370645%
C1349523.854707%
D1349231.704967%

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 1349 1349 0 0 0.00% 0.00%
B 1349 1349 0 0 0.00% 0.00%
C 1349 1349 18 18 1.33% 1.33%
D 1349 1349 26 26 1.93% 1.93%

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 2278 60.31 170 166 35.0
A 0 226 1518 38.61 170 166 35.0
A 3 137 1367 34.3 170 166 35.0
B 3 64 18434 537.54 175 171 34.0
B 4 216 5146 146.43 175 171 34.0
B 0 189 4047 114.08 175 171 34.0
C 0 10 99745 2516.07 165 166 39.6
C 14 238 27271 684.86 165 166 39.6
C 0 207 2746 65.19 165 166 39.6
D 1 52 113148 2772.63 166 161 40.8
D 13 153 20428 497.34 166 161 40.8
D 13 174 18736 455.82 166 161 40.8

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