ASTROSAT CZTI

Data Quality Report

Orbit 30543

Creation date: 2024-06-27T20:16:42.485961
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_053T17_9000004396_30543cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30543cztM0_level2_quad_clean.evt
Size (bytes)522,411,84067,754,880
Size498.2 MB 64.6 MB
Events in quadrant A3,241,595426,877
Events in quadrant B5,024,680424,132
Events in quadrant C3,700,788386,217
Events in quadrant D3,449,496396,711

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129911
B0186382
C0146641
D0138341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5976671.121151%
B59751502.510460%
C59751622.711297%
D5976450.753012%

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 7286 5977 0 0 0.00% 0.00%
B 7285 5976 8 8 0.11% 0.13%
C 7285 5976 42 42 0.58% 0.70%
D 7286 5977 6 6 0.08% 0.10%

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 8 192 12990 73.67 837 823 165.1
A 13 254 10815 60.5 837 823 165.1
A 3 137 7757 41.99 837 823 165.1
B 6 159 1613069 10504.5 819 802 153.5
B 6 36 152133 985.98 819 802 153.5
B 0 229 19262 120.27 819 802 153.5
C 3 233 364363 2054.76 768 775 176.9
C 0 10 182575 1027.41 768 775 176.9
C 14 238 130109 730.91 768 775 176.9
D 8 195 230068 1232.16 799 780 186.1
D 12 227 113064 603.4 799 780 186.1
D 2 234 25905 135.02 799 780 186.1

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