ASTROSAT CZTI

Data Quality Report

Orbit 10675

Creation date: 2024-06-27T16:02:19.454503
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/AS1A03_097T01_9000001540_10675cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10675cztM0_level2_quad_clean.evt
Size (bytes)1,291,956,480149,120,640
Size1.2 GB 142.2 MB
Events in quadrant A15,037,632825,229
Events in quadrant B8,284,817947,915
Events in quadrant C6,075,735954,694
Events in quadrant D8,844,507881,813

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053558120
B03327630
C02728612
D03418413

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13108371828.364358%
B131145984.560012%
C131191891.440659%
D131187315.572496%

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 14197 13110 3264 3264 22.99% 24.90%
B 14198 13121 219 219 1.54% 1.67%
C 14198 13125 20 20 0.14% 0.15%
D 14198 13123 488 488 3.44% 3.72%

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 15 239 9888103 39779.57 1229 1201 248.5
A 15 174 186729 746.46 1229 1201 248.5
A 13 251 87966 349.1 1229 1201 248.5
B 4 239 1390954 4790.64 1518 1478 290.0
B 4 81 487628 1676.15 1518 1478 290.0
B 0 85 170135 581.5 1518 1478 290.0
C 4 254 206537 596.54 1487 1492 343.7
C 14 234 36366 101.46 1487 1492 343.7
C 1 3 27579 75.89 1487 1492 343.7
D 10 199 955377 2737.69 1451 1411 348.5
D 8 195 884216 2533.47 1451 1411 348.5
D 2 14 566376 1621.33 1451 1411 348.5

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