ASTROSAT CZTI

Data Quality Report

Orbit 06794

Creation date: 2024-06-27T15:11:46.248569
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/AS1G06_086T02_9000000936_06794cztM0_level2.evt modeM0/AS1G06_086T02_9000000936_06794cztM0_level2_quad_clean.evt
Size (bytes)65,085,12019,955,520
Size62.1 MB 19.0 MB
Events in quadrant A463,395129,871
Events in quadrant B482,428132,005
Events in quadrant C472,597129,199
Events in quadrant D470,886125,173

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023011
B023090
C023030
D023150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A114910.087032%
B114900.000000%
C114900.000000%
D114900.000000%

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 1149 1149 0 0 0.00% 0.00%
B 1149 1149 0 0 0.00% 0.00%
C 1149 1149 0 0 0.00% 0.00%
D 1149 1149 0 0 0.00% 0.00%

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 0 226 1089 36.16 120 117 26.9
A 12 194 1026 33.82 120 117 26.9
A 13 254 723 22.54 120 117 26.9
B 4 81 5271 199.06 123 120 25.9
B 12 111 2456 90.28 123 120 25.9
B 11 111 1919 69.52 123 120 25.9
C 9 247 6415 213.17 118 119 29.5
C 12 16 2109 67.38 118 119 29.5
C 13 61 967 28.71 118 119 29.5
D 8 195 23232 768.68 116 113 30.1
D 8 240 7869 257.88 116 113 30.1
D 2 14 2478 78.63 116 113 30.1

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