ASTROSAT CZTI

Data Quality Report

Orbit 32984

Creation date: 2024-06-27T20:44:14.224401
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/AS1C07_003T01_9000004754_32984cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32984cztM0_level2_quad_clean.evt
Size (bytes)440,527,68090,311,040
Size420.1 MB 86.1 MB
Events in quadrant A2,771,791590,598
Events in quadrant B3,544,816591,054
Events in quadrant C2,924,198584,547
Events in quadrant D3,699,043555,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120113
B0142232
C0125562
D0148602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A591180.135341%
B59112634.449332%
C5911751.268821%
D5911641.082727%

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 9106 5913 2 2 0.02% 0.03%
B 9106 5913 153 153 1.68% 2.59%
C 9106 5913 44 44 0.48% 0.74%
D 9106 5913 57 57 0.63% 0.96%

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 9 143 18927 127.17 711 699 143.3
A 13 254 10365 67.44 711 699 143.3
A 3 137 6893 43.21 711 699 143.3
B 5 172 684420 5107.2 695 678 133.9
B 0 197 75864 561.6 695 678 133.9
B 12 111 16557 118.61 695 678 133.9
C 0 10 164773 1032.14 683 689 159.0
C 3 233 43607 269.97 683 689 159.0
C 9 54 19399 117.69 683 689 159.0
D 8 195 328421 1839.04 679 666 178.2
D 12 227 202053 1129.99 679 666 178.2
D 7 80 142465 795.64 679 666 178.2

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