ASTROSAT CZTI

Data Quality Report

Orbit 47095

Creation date: 2024-06-27T23:31:39.758092
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/AS1C09_003T01_9000006298_47095cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47095cztM0_level2_quad_clean.evt
Size (bytes)459,028,800101,882,880
Size437.8 MB 97.2 MB
Events in quadrant A6,167,880678,091
Events in quadrant B3,712,197687,155
Events in quadrant C3,205,231660,339
Events in quadrant D3,411,848614,451

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224601
B0154331
C0143991
D0148971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63711692.652645%
B63712053.217705%
C6371961.506828%
D63721011.585060%

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 7396 6372 35 35 0.47% 0.55%
B 7396 6371 102 102 1.38% 1.60%
C 7396 6372 68 68 0.92% 1.07%
D 7397 6373 73 73 0.99% 1.15%

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 3428474 24338.49 682 669 140.8
A 7 3 29235 202.83 682 669 140.8
A 9 191 24358 168.2 682 669 140.8
B 3 112 432187 3250.74 678 658 132.7
B 5 32 426048 3204.49 678 658 132.7
B 4 171 39311 291.18 678 658 132.7
C 15 208 401433 2565.51 667 669 156.2
C 14 254 156866 999.9 667 669 156.2
C 3 233 19909 123.17 667 669 156.2
D 14 34 294991 1766.09 665 643 166.7
D 13 249 101859 607.3 665 643 166.7
D 12 233 93495 557.11 665 643 166.7

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