ASTROSAT CZTI

Data Quality Report

Orbit 10566

Creation date: 2024-06-27T16:00:54.610303
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/AS1G07_004T01_9000001532_10566cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10566cztM0_level2_quad_clean.evt
Size (bytes)539,455,680100,238,400
Size514.5 MB 95.6 MB
Events in quadrant A3,391,200626,495
Events in quadrant B4,126,119654,120
Events in quadrant C3,348,704660,137
Events in quadrant D4,994,568605,083

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147475
B0169166
C0146152
D0196692

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7035500.710732%
B70342253.198749%
C7036450.639568%
D70361912.714611%

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 9666 7039 0 0 0.00% 0.00%
B 9666 7039 97 97 1.00% 1.38%
C 9666 7039 0 0 0.00% 0.00%
D 9666 7039 107 107 1.11% 1.52%

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 1 162 33278 186.99 862 845 173.4
A 13 251 11228 59.86 862 845 173.4
A 1 178 10126 53.51 862 845 173.4
B 4 239 637762 3939.7 869 849 161.7
B 0 214 68006 415.41 869 849 161.7
B 0 219 32600 196.4 869 849 161.7
C 13 61 6472 28.52 857 862 196.7
C 14 234 4076 16.34 857 862 196.7
C 4 175 3519 13.5 857 862 196.7
D 2 16 1281259 6481.1 834 809 197.6
D 8 195 306235 1545.94 834 809 197.6
D 12 233 183426 924.33 834 809 197.6

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