ASTROSAT CZTI

Data Quality Report

Orbit 09642

Creation date: 2024-06-27T15:48:48.175481
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_077T01_9000001372_09642cztM0_level2.evt modeM0/AS1A03_077T01_9000001372_09642cztM0_level2_quad_clean.evt
Size (bytes)314,291,52058,815,360
Size299.7 MB 56.1 MB
Events in quadrant A2,122,507387,353
Events in quadrant B2,225,149390,092
Events in quadrant C2,054,428385,935
Events in quadrant D2,821,179314,120

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219
B0218
C0199
D0218

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014648
B014656
C014642
D014648

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148535673
B0151065809
C0148255754
D02140410150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44211082.442886%
B44131102.492635%
C4382801.825650%
D37671193.159012%

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 9137 5712 0 0 0.00% 0.00%
B 9146 5682 0 0 0.00% 0.00%
C 9109 5665 0 0 0.00% 0.00%
D 9076 5117 14 14 0.15% 0.27%

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 13 248 11284 94.91 548 536 113.2
A 0 226 5066 40.0 548 536 113.2
A 12 194 4570 35.62 548 536 113.2
B 0 214 37188 345.83 544 529 106.0
B 0 229 30018 278.19 544 529 106.0
B 0 219 20611 189.45 544 529 106.0
C 13 61 3927 27.6 526 527 123.2
C 3 202 1353 6.71 526 527 123.2
C -1 -1 -1 -1.0 526 527 123.2
D 8 195 891259 8094.59 449 438 110.1
D 12 233 108388 980.9 449 438 110.1
D 13 104 38938 349.84 449 438 110.1

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