ASTROSAT CZTI

Data Quality Report

Orbit 03041

Creation date: 2024-06-27T14:23:51.334542
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/AS1G05_237T02_9000000422_03041cztM0_level2.evt modeM0/AS1G05_237T02_9000000422_03041cztM0_level2_quad_clean.evt
Size (bytes)417,528,00082,385,280
Size398.2 MB 78.6 MB
Events in quadrant A2,288,211548,684
Events in quadrant B4,196,855530,476
Events in quadrant C3,021,798517,836
Events in quadrant D2,780,906529,758

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105923
B0160382
C0128322
D0120202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525370.133257%
B52533526.700933%
C52533586.815153%
D5253591.123168%

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 7409 5254 0 0 0.00% 0.00%
B 7409 5254 286 286 3.86% 5.44%
C 7409 5254 195 195 2.63% 3.71%
D 7409 5254 54 54 0.73% 1.03%

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 12 247 31668 268.82 573 561 115.7
A 0 50 15140 125.99 573 561 115.7
A 13 251 8785 71.07 573 561 115.7
B 15 204 1362060 12573.89 568 555 108.3
B 2 249 165270 1521.19 568 555 108.3
B 0 230 160653 1478.55 568 555 108.3
C 1 192 730276 5907.82 535 537 123.5
C 6 80 156013 1258.7 535 537 123.5
C 1 16 12671 98.23 535 537 123.5
D 10 213 198110 1493.13 555 542 132.3
D 13 70 102229 768.51 555 542 132.3
D 2 152 86229 647.59 555 542 132.3

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