ASTROSAT CZTI

Data Quality Report

Orbit 42319

Creation date: 2024-06-27T22:38:57.367885
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_001T10_9000005796_42319cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42319cztM0_level2_quad_clean.evt
Size (bytes)266,310,72075,021,120
Size254.0 MB 71.5 MB
Events in quadrant A2,857,076492,877
Events in quadrant B1,996,806505,168
Events in quadrant C2,126,646492,846
Events in quadrant D2,517,359456,411

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115061
B094002
C094621
D0108781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0960
B0960
C0960
D0960

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4610661.431670%
B460970.151877%
C4609200.433934%
D4609771.670644%

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 6071 4611 43 43 0.71% 0.93%
B 6070 4610 0 0 0.00% 0.00%
C 6070 4610 19 19 0.31% 0.41%
D 6070 4610 71 71 1.17% 1.54%

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 15 223 553074 5525.41 488 479 100.0
A 10 83 402163 4016.44 488 479 100.0
A 13 248 8284 78.04 488 479 100.0
B 3 112 23218 240.99 485 471 94.4
B 5 172 18328 189.18 485 471 94.4
B 0 245 17349 178.81 485 471 94.4
C 15 214 188996 1691.32 477 479 111.5
C 9 54 55361 492.38 477 479 111.5
C 12 249 13427 116.17 477 479 111.5
D 1 52 175133 1508.33 474 461 115.8
D 12 6 168171 1448.21 474 461 115.8
D 5 70 101244 870.28 474 461 115.8

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