ASTROSAT CZTI

Data Quality Report

Orbit 28152

Creation date: 2024-06-27T19:48:37.127981
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/AS1A10_045T04_9000004066_28152cztM0_level2.evt modeM0/AS1A10_045T04_9000004066_28152cztM0_level2_quad_clean.evt
Size (bytes)647,634,24093,121,920
Size617.6 MB 88.8 MB
Events in quadrant A2,988,335673,778
Events in quadrant B3,117,169696,370
Events in quadrant C3,262,693647,577
Events in quadrant D9,833,619376,548

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126250
B0129990
C0134730
D0331640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6085210.345111%
B6086350.575090%
C6086611.002300%
D6086265143.558988%

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 7335 6086 0 0 0.00% 0.00%
B 7336 6087 8 8 0.11% 0.13%
C 7336 6087 0 0 0.00% 0.00%
D 7336 6087 2589 2589 35.29% 42.53%

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 9720 57.96 773 760 154.6
A 3 137 7326 42.47 773 760 154.6
A 0 226 6521 37.26 773 760 154.6
B 10 246 38934 262.35 775 759 145.5
B 12 111 17694 116.38 775 759 145.5
B 0 183 17438 114.62 775 759 145.5
C 3 233 192750 1123.84 739 745 170.8
C 14 238 120444 700.62 739 745 170.8
C 2 16 47969 276.41 739 745 170.8
D 7 80 6362605 47837.86 550 537 133.0
D 7 223 904447 6796.71 550 537 133.0
D 1 52 237197 1779.5 550 537 133.0

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