ASTROSAT CZTI

Data Quality Report

Orbit 14975

Creation date: 2024-06-27T17:02:01.983980
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/AS1T02_056T01_9000002210_14975cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14975cztM0_level2_quad_clean.evt
Size (bytes)484,162,56093,170,880
Size461.7 MB 88.9 MB
Events in quadrant A3,481,351597,190
Events in quadrant B3,943,874592,434
Events in quadrant C3,276,697581,240
Events in quadrant D3,487,120564,702

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148973
B0162642
C0142182
D0153182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6968330.473594%
B69681131.621699%
C6968150.215270%
D69681051.506889%

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 8645 6971 3 3 0.03% 0.04%
B 8645 6971 57 57 0.66% 0.82%
C 8645 6971 0 0 0.00% 0.00%
D 8645 6971 77 77 0.89% 1.10%

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 12 189 84547 501.57 824 807 167.0
A 1 162 80323 476.27 824 807 167.0
A 1 178 41501 243.74 824 807 167.0
B 3 64 339345 2156.21 822 803 157.0
B 10 16 141903 898.68 822 803 157.0
B 0 219 42280 264.17 822 803 157.0
C 3 233 126343 674.83 803 807 186.0
C 8 128 9849 48.61 803 807 186.0
C 13 61 5866 27.2 803 807 186.0
D 7 38 239674 1152.62 791 772 207.3
D 13 249 133157 638.71 791 772 207.3
D 2 234 27366 128.31 791 772 207.3

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