ASTROSAT CZTI

Data Quality Report

Orbit 42588

Creation date: 2024-06-27T22:41:53.924064
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/AS1A12_061T07_9000005818_42588cztM0_level2.fits modeM0/AS1A12_061T07_9000005818_42588cztM0_level2_quad_clean.evt
Size (bytes)295,600,32091,681,920
Size281.9 MB 87.4 MB
Events in quadrant A2,841,592613,839
Events in quadrant B2,414,022632,151
Events in quadrant C2,567,858608,627
Events in quadrant D2,710,096554,462

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115842
B0106982
C0107452
D0117342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5240140.267176%
B524090.171756%
C524090.171756%
D5240330.629771%

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 7092 5241 5 5 0.07% 0.10%
B 7092 5241 1 1 0.01% 0.02%
C 7092 5241 5 5 0.07% 0.10%
D 7092 5241 28 28 0.39% 0.53%

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 10 83 529496 4381.89 590 580 120.7
A 7 3 16579 132.55 590 580 120.7
A 3 137 6523 49.24 590 580 120.7
B 0 245 48808 425.93 589 574 113.2
B 12 111 14085 119.31 589 574 113.2
B 5 255 13611 115.12 589 574 113.2
C 15 214 219494 1606.76 588 593 136.2
C 14 254 22309 159.4 588 593 136.2
C 5 250 14997 105.73 588 593 136.2
D 12 6 146376 1029.7 584 569 141.6
D 1 52 88635 621.93 584 569 141.6
D 2 16 79633 558.35 584 569 141.6

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