ASTROSAT CZTI

Data Quality Report

Orbit 08237

Creation date: 2024-06-27T15:29:52.408919
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_070T01_9000001138_08237cztM0_level2.evt modeM0/AS1G07_070T01_9000001138_08237cztM0_level2_quad_clean.evt
Size (bytes)215,380,80062,991,360
Size205.4 MB 60.1 MB
Events in quadrant A1,595,499424,838
Events in quadrant B1,688,344424,689
Events in quadrant C1,438,815417,953
Events in quadrant D1,574,325406,217

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067910
B070260
C066250
D069920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329250.151883%
B3292100.303767%
C329200.000000%
D329260.182260%

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 3292 3292 0 0 0.00% 0.00%
B 3292 3292 3 3 0.09% 0.09%
C 3292 3292 0 0 0.00% 0.00%
D 3292 3292 4 4 0.12% 0.12%

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 15 82072 1020.38 390 383 80.1
A 5 16 5629 65.53 390 383 80.1
A 0 226 3814 42.86 390 383 80.1
B 11 51 99774 1338.77 385 377 74.2
B 0 214 44476 593.97 385 377 74.2
B 0 219 14059 184.28 385 377 74.2
C 7 237 4039 42.75 368 369 85.8
C 13 61 2717 27.35 368 369 85.8
C 3 202 975 7.05 368 369 85.8
D 1 52 53474 567.63 375 365 93.6
D 13 105 49654 526.8 375 365 93.6
D 12 221 21317 223.94 375 365 93.6

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