ASTROSAT CZTI

Data Quality Report

Orbit 08545

Creation date: 2024-06-27T15:34:07.157550
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_08545cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08545cztM0_level2_quad_clean.evt
Size (bytes)573,217,92087,816,960
Size546.7 MB 83.7 MB
Events in quadrant A4,078,826524,018
Events in quadrant B4,250,011526,687
Events in quadrant C3,924,239518,927
Events in quadrant D4,529,064499,269

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01722
B01722
C01720
D01720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01808632
B01829952
C01777326
D01966334

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85044194.927093%
B84974615.425444%
C85062693.162474%
D85044725.550329%

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 8809 8520 14 14 0.16% 0.16%
B 8809 8519 17 17 0.19% 0.20%
C 8809 8520 0 0 0.00% 0.00%
D 8809 8519 106 106 1.20% 1.24%

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 95139 442.41 1024 998 212.8
A 15 239 33583 153.13 1024 998 212.8
A 12 194 9960 42.12 1024 998 212.8
B 10 16 179802 896.05 1025 998 199.5
B 0 214 33788 164.32 1025 998 199.5
B 12 111 23267 111.6 1025 998 199.5
C 9 54 21490 88.25 998 997 232.2
C 13 61 7813 29.35 998 997 232.2
C 14 234 4790 16.33 998 997 232.2
D 4 95 665567 2718.43 983 954 244.5
D 1 52 37236 148.4 983 954 244.5
D 2 234 27231 107.48 983 954 244.5

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