ASTROSAT CZTI

Data Quality Report

Orbit 07396

Creation date: 2024-06-27T15:19:16.136847
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/AS1A02_031T01_9000001014_07396cztM0_level2.evt modeM0/AS1A02_031T01_9000001014_07396cztM0_level2_quad_clean.evt
Size (bytes)334,365,12073,509,120
Size318.9 MB 70.1 MB
Events in quadrant A2,317,997471,091
Events in quadrant B2,341,772486,371
Events in quadrant C2,257,797482,249
Events in quadrant D2,887,926455,671

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0993
B01004
C01015
D01013

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010399338
B010438362
C010239364
D012273345

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4710721.528662%
B4708541.146984%
C4701410.872155%
D47071022.166985%

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 6052 4720 3 3 0.05% 0.06%
B 6004 4717 2 2 0.03% 0.04%
C 6000 4711 0 0 0.00% 0.00%
D 6002 4715 50 50 0.83% 1.06%

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 14 111 57185 476.25 583 571 118.9
A 3 1 10101 80.17 583 571 118.9
A 15 234 7984 62.36 583 571 118.9
B 0 214 29408 256.15 593 580 112.5
B 12 111 11149 93.91 593 580 112.5
B 11 111 8761 72.69 593 580 112.5
C 1 16 7655 52.82 576 581 133.9
C 13 61 4422 28.68 576 581 133.9
C 12 4 4416 28.64 576 581 133.9
D 2 216 366406 2603.75 569 553 140.5
D 14 34 138616 982.58 569 553 140.5
D 12 233 87594 619.46 569 553 140.5

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