ASTROSAT CZTI

Data Quality Report

Orbit 17414

Creation date: 2024-06-27T17:36:14.801735
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/AS1A05_198T01_9000002578_17414cztM0_level2.evt modeM0/AS1A05_198T01_9000002578_17414cztM0_level2_quad_clean.evt
Size (bytes)288,224,64034,709,760
Size274.9 MB 33.1 MB
Events in quadrant A1,872,118203,057
Events in quadrant B2,014,778204,837
Events in quadrant C1,938,274195,412
Events in quadrant D2,654,995189,268

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A078731
B082552
C079401
D0103661

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3646992.715304%
B36451263.456790%
C3645952.606310%
D36451554.252401%

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 4826 3647 0 0 0.00% 0.00%
B 4825 3646 2 2 0.04% 0.05%
C 4825 3646 0 0 0.00% 0.00%
D 4825 3646 72 72 1.49% 1.97%

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 6 16 6839 64.35 485 473 98.9
A 0 226 4422 39.92 485 473 98.9
A 12 194 3589 31.5 485 473 98.9
B 15 35 28017 289.45 484 472 95.2
B 7 220 27273 281.63 484 472 95.2
B 4 216 23872 245.89 484 472 95.2
C 14 238 71217 642.4 460 464 110.1
C 5 218 32648 292.22 460 464 110.1
C 3 233 26026 232.09 460 464 110.1
D 13 232 396208 3401.79 466 454 116.3
D 11 176 289264 2482.53 466 454 116.3
D 13 189 68692 586.55 466 454 116.3

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