ASTROSAT CZTI

Data Quality Report

Orbit 19211

Creation date: 2024-06-27T18:00:07.908265
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_046T01_9000002838_19211cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19211cztM0_level2_quad_clean.evt
Size (bytes)222,603,84057,706,560
Size212.3 MB 55.0 MB
Events in quadrant A1,514,175374,944
Events in quadrant B1,559,351385,470
Events in quadrant C1,944,658376,681
Events in quadrant D1,487,969366,700

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069791
B069971
C078751
D070001

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A343770.203666%
B343770.203666%
C3437310.901949%
D343740.116381%

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 3437 3437 0 0 0.00% 0.00%
B 3437 3437 0 0 0.00% 0.00%
C 3437 3437 0 0 0.00% 0.00%
D 3437 3437 0 0 0.00% 0.00%

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 13 254 3978 44.23 392 383 81.3
A 0 226 3382 36.89 392 383 81.3
A 3 137 2999 32.18 392 383 81.3
B 12 111 9259 114.93 395 385 77.2
B 0 198 8369 103.4 395 385 77.2
B 11 111 8231 101.62 395 385 77.2
C 3 233 366032 3935.1 387 390 92.9
C 14 238 59087 631.71 387 390 92.9
C 7 220 13075 136.52 387 390 92.9
D 10 66 14605 149.56 387 377 95.1
D 2 234 11577 117.73 387 377 95.1
D 13 238 8068 80.85 387 377 95.1

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