ASTROSAT CZTI

Data Quality Report

Orbit 51003

Creation date: 2025-03-03T19:04:48.985156
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/AS1C07_001T02_9000006452_51003cztM0_level2.fits modeM0/AS1C07_001T02_9000006452_51003cztM0_level2_quad_clean.evt
Size (bytes)484,205,76088,784,640
Size461.8 MB 84.7 MB
Events in quadrant A4,949,037568,600
Events in quadrant B3,827,353623,857
Events in quadrant C4,060,107549,895
Events in quadrant D4,605,576512,538

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189062
B0156122
C0164113
D0179472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62044537.301741%
B62052674.302981%
C62042844.577692%
D62043675.915538%

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 7179 6206 313 313 4.36% 5.04%
B 7180 6207 73 73 1.02% 1.18%
C 7179 6206 215 215 2.99% 3.46%
D 7179 6206 247 247 3.44% 3.98%

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 12 80 415818 2586.67 646 629 160.5
A 10 253 385108 2395.35 646 629 160.5
A 3 130 355030 2207.96 646 629 160.5
B 1 207 247094 1796.75 645 622 137.2
B 4 171 216267 1572.02 645 622 137.2
B 4 170 127516 925.04 645 622 137.2
C 15 157 606395 3569.07 617 610 169.7
C 15 1 200826 1179.6 617 610 169.7
C 4 12 143488 841.79 617 610 169.7
D 10 181 605694 3486.04 620 595 173.6
D 7 39 573119 3298.38 620 595 173.6
D 2 216 280803 1614.31 620 595 173.6

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