ASTROSAT CZTI

Data Quality Report

Orbit 40203

Creation date: 2024-06-27T22:13:34.424852
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/AS1A12_053T01_9000005530_40203cztM0_level2.fits modeM0/AS1A12_053T01_9000005530_40203cztM0_level2_quad_clean.evt
Size (bytes)347,627,52088,922,880
Size331.5 MB 84.8 MB
Events in quadrant A3,519,847585,199
Events in quadrant B2,882,696609,199
Events in quadrant C2,733,464593,524
Events in quadrant D3,316,504531,327

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139473
B0121212
C0112312
D0136712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53341532.868391%
B5334961.799775%
C5334180.337458%
D53341743.262092%

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 7097 5335 97 97 1.37% 1.82%
B 7097 5335 67 67 0.94% 1.26%
C 7097 5335 8 8 0.11% 0.15%
D 7097 5335 153 153 2.16% 2.87%

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 794713 6758.69 577 566 117.5
A 10 83 462548 3931.76 577 566 117.5
A 13 6 11070 89.4 577 566 117.5
B 5 255 266782 2350.81 582 567 113.2
B 7 202 219854 1936.41 582 567 113.2
B 0 245 65075 569.64 582 567 113.2
C 15 214 222881 1639.27 579 583 135.6
C 4 254 112220 823.24 579 583 135.6
C 0 10 59475 434.28 579 583 135.6
D 12 227 876883 6307.41 567 552 138.9
D 13 249 118314 847.59 567 552 138.9
D 9 19 74002 528.66 567 552 138.9

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