ASTROSAT CZTI

Data Quality Report

Orbit 07612

Creation date: 2024-06-27T15:21:48.005678
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/AS1G06_117T01_9000001046_07612cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07612cztM0_level2_quad_clean.evt
Size (bytes)267,837,12035,216,640
Size255.4 MB 33.6 MB
Events in quadrant A1,728,763210,982
Events in quadrant B1,835,474212,206
Events in quadrant C1,869,030203,580
Events in quadrant D2,441,988194,110

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071772
B074760
C077600
D095600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A345940.115640%
B346070.202312%
C346090.260116%
D34601955.635838%

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 3460 3460 0 0 0.00% 0.00%
B 3460 3460 3 3 0.09% 0.09%
C 3460 3460 7 7 0.20% 0.20%
D 3460 3460 154 154 4.45% 4.45%

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 3 1 4718 47.05 448 441 90.9
A 0 226 4346 42.95 448 441 90.9
A 12 194 3830 37.28 448 441 90.9
B 0 229 74545 886.22 442 433 83.6
B 0 214 14958 173.69 442 433 83.6
B 4 81 10569 121.2 442 433 83.6
C 9 68 137493 1419.31 420 423 96.6
C 4 254 90313 930.78 420 423 96.6
C 13 61 3269 29.47 420 423 96.6
D 13 104 479676 4737.65 418 406 101.2
D 2 152 200006 1973.07 418 406 101.2
D 2 14 162231 1599.66 418 406 101.2

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