ASTROSAT CZTI

Data Quality Report

Orbit 06590

Creation date: 2024-06-27T15:09:08.882459
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_169T01_9000000886_06590cztM0_level2.evt modeM0/AS1G06_169T01_9000000886_06590cztM0_level2_quad_clean.evt
Size (bytes)282,784,32039,208,320
Size269.7 MB 37.4 MB
Events in quadrant A1,902,814226,555
Events in quadrant B2,114,852228,386
Events in quadrant C1,821,077225,393
Events in quadrant D2,442,971215,094

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084621
B090781
C083931
D0100161

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4129220.532817%
B4129380.920320%
C412950.121095%
D41291142.760959%

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 4129 4129 5 5 0.12% 0.12%
B 4129 4129 11 11 0.27% 0.27%
C 4129 4129 1 1 0.02% 0.02%
D 4129 4129 83 83 2.01% 2.01%

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 8 15 29127 291.96 474 464 98.2
A 3 1 18250 181.17 474 464 98.2
A 15 239 16813 166.53 474 464 98.2
B 4 80 109796 1194.66 473 463 91.5
B 0 219 88320 960.0 473 463 91.5
B 0 214 34720 374.32 473 463 91.5
C 9 54 11695 104.6 457 460 107.4
C 8 128 10558 94.02 457 460 107.4
C 8 112 4966 41.95 457 460 107.4
D 2 33 258471 2285.85 457 442 112.9
D 2 152 121234 1070.08 457 442 112.9
D 13 172 120253 1061.39 457 442 112.9

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