ASTROSAT CZTI

Data Quality Report

Orbit 11064

Creation date: 2024-06-27T16:07:46.235586
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/AS1A04_053T03_9000001612_11064cztM0_level2.evt modeM0/AS1A04_053T03_9000001612_11064cztM0_level2_quad_clean.evt
Size (bytes)219,326,40030,533,760
Size209.2 MB 29.1 MB
Events in quadrant A1,442,063183,378
Events in quadrant B1,759,626178,468
Events in quadrant C1,385,377184,036
Events in quadrant D1,858,812173,682

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060102
B069501
C059361
D072921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2867190.662714%
B28671434.987792%
C286740.139519%
D28671133.941402%

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 3252 2868 0 0 0.00% 0.00%
B 3252 2868 71 71 2.18% 2.48%
C 3252 2868 0 0 0.00% 0.00%
D 3252 2868 68 68 2.09% 2.37%

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 15 174 26866 348.56 366 359 76.0
A 14 238 3615 42.82 366 359 76.0
A 0 226 3335 39.13 366 359 76.0
B 4 239 301308 4231.74 358 348 71.1
B 0 245 13143 179.91 358 348 71.1
B 15 204 12784 174.86 358 348 71.1
C 8 128 2690 27.83 353 355 83.9
C 13 61 2577 26.48 353 355 83.9
C 8 112 1628 15.17 353 355 83.9
D 14 34 122544 1421.54 351 341 86.0
D 9 101 106437 1234.17 351 341 86.0
D 1 52 94232 1092.19 351 341 86.0

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