ASTROSAT CZTI

Data Quality Report

Orbit 29296

Creation date: 2024-06-27T20:02:29.291251
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_050T01_9000004212_29296cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29296cztM0_level2_quad_clean.evt
Size (bytes)788,549,76086,685,120
Size752.0 MB 82.7 MB
Events in quadrant A3,086,615595,554
Events in quadrant B3,817,278596,997
Events in quadrant C11,190,920471,223
Events in quadrant D5,389,175549,125

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125051
B0149091
C0372971
D0201211

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5882280.476029%
B58832714.606493%
C5883390266.326704%
D58833926.663267%

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 7152 5883 0 0 0.00% 0.00%
B 7153 5884 136 136 1.90% 2.31%
C 7153 5884 2600 2600 36.35% 44.19%
D 7153 5884 300 300 4.19% 5.10%

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 12042 71.18 800 787 158.1
A 0 226 6901 38.67 800 787 158.1
A 3 137 6882 38.55 800 787 158.1
B 10 245 734034 4998.85 774 756 146.7
B 0 229 21320 140.19 774 756 146.7
B 0 190 20806 136.68 774 756 146.7
C 3 233 8458429 59277.95 620 627 142.7
C 14 238 175133 1223.06 620 627 142.7
C 14 254 121448 846.79 620 627 142.7
D 1 52 1574422 8838.01 761 744 178.1
D 8 195 553824 3106.18 761 744 178.1
D 12 233 185299 1036.49 761 744 178.1

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