ASTROSAT CZTI

Data Quality Report

Orbit 29208

Creation date: 2024-06-27T20:01:30.033709
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_053T43_9000004198_29208cztM0_level2.evt modeM0/AS1A10_053T43_9000004198_29208cztM0_level2_quad_clean.evt
Size (bytes)127,707,8409,040,320
Size121.8 MB 8.6 MB
Events in quadrant A720,72646,827
Events in quadrant B844,07046,369
Events in quadrant C1,069,65743,492
Events in quadrant D1,147,56543,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A029610
B033640
C040861
D043300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A122610.081566%
B1226362.936378%
C1225352.857143%
D1225473.836735%

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 1226 1226 0 0 0.00% 0.00%
B 1226 1226 11 11 0.90% 0.90%
C 1225 1225 0 0 0.00% 0.00%
D 1225 1225 44 44 3.59% 3.59%

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 2414 57.73 186 183 38.6
A 0 13 1742 40.34 186 183 38.6
A 3 137 1649 37.93 186 183 38.6
B 10 245 90801 2581.53 179 176 35.1
B 0 229 22001 621.7 179 176 35.1
B 0 190 14842 417.77 179 176 35.1
C 3 233 381197 9445.42 168 170 40.3
C 14 238 28020 690.38 168 170 40.3
C 2 114 2778 64.65 168 170 40.3
D 1 52 246354 5910.42 173 169 41.7
D 8 195 216815 5201.25 173 169 41.7
D 7 80 12271 290.55 173 169 41.7

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