ASTROSAT CZTI

Data Quality Report

Orbit 36903

Creation date: 2024-06-27T21:33:03.195217
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_010T01_9000005246_36903cztM0_level2.evt modeM0/AS1C07_010T01_9000005246_36903cztM0_level2_quad_clean.evt
Size (bytes)372,885,12049,766,400
Size355.6 MB 47.5 MB
Events in quadrant A2,783,088377,201
Events in quadrant B866,5836,073
Events in quadrant C2,766,389376,332
Events in quadrant D4,479,118342,857

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119072
B058201
C0116851
D0172611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5752370.643255%
B57525752100.000000%
C575260.104312%
D57524978.640473%

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 7095 5753 28 28 0.39% 0.49%
B 7094 5751 0 0 0.00% 0.00%
C 7095 5753 5 5 0.07% 0.09%
D 7095 5753 472 472 6.65% 8.20%

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 10 83 182646 1384.8 648 634 131.4
A 15 223 84360 637.01 648 634 131.4
A 13 6 13010 94.16 648 634 131.4
B 12 243 798641 196213.4 11 11 4.1
B 12 144 15207 3733.47 11 11 4.1
B 0 229 2106 514.72 11 11 4.1
C 15 214 245475 1644.93 632 636 148.8
C 0 10 55819 370.74 632 636 148.8
C 13 61 4251 24.29 632 636 148.8
D 13 249 1081916 7091.68 617 601 152.5
D 12 17 350970 2297.85 617 601 152.5
D 10 253 277567 1816.45 617 601 152.5

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