ASTROSAT CZTI

Data Quality Report

Orbit 30541

Creation date: 2024-06-27T20:16:40.579812
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_30541cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30541cztM0_level2_quad_clean.evt
Size (bytes)150,108,48034,997,760
Size143.2 MB 33.4 MB
Events in quadrant A967,940249,021
Events in quadrant B1,396,728245,277
Events in quadrant C1,076,394221,363
Events in quadrant D1,000,026231,856

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039371
B051371
C041921
D040871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1513553.635162%
B1513966.345010%
C15131318.658295%
D1513281.850628%

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 2788 1514 0 0 0.00% 0.00%
B 2788 1514 6 6 0.22% 0.40%
C 2788 1514 48 48 1.72% 3.17%
D 2788 1514 3 3 0.11% 0.20%

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 12156 237.26 247 244 50.2
A 13 254 2582 46.57 247 244 50.2
A 3 137 2126 37.48 247 244 50.2
B 6 159 390828 8614.17 234 230 45.3
B 6 36 53207 1168.34 234 230 45.3
B 4 171 24683 539.28 234 230 45.3
C 0 10 183505 3563.32 217 219 51.4
C 14 238 35952 694.7 217 219 51.4
C 10 22 3559 64.93 217 219 51.4
D 8 195 53853 947.81 237 232 56.6
D 13 249 19706 344.23 237 232 56.6
D 2 120 15253 265.51 237 232 56.6

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