ASTROSAT CZTI

Data Quality Report

Orbit 38140

Creation date: 2024-06-27T21:48:54.033517
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_001T12_9000005366_38140cztM0_level2.fits modeM0/AS1C07_001T12_9000005366_38140cztM0_level2_quad_clean.evt
Size (bytes)304,476,48091,632,960
Size290.4 MB 87.4 MB
Events in quadrant A2,752,604620,686
Events in quadrant B2,604,628628,657
Events in quadrant C2,575,910603,433
Events in quadrant D2,925,574551,184

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115543
B0113622
C0109812
D0124402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5283170.321787%
B5283380.719288%
C5283110.208215%
D5283881.665720%

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 7016 5284 8 8 0.11% 0.15%
B 7016 5284 25 25 0.36% 0.47%
C 7016 5284 9 9 0.13% 0.17%
D 7016 5284 74 74 1.05% 1.40%

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 381049 3222.2 592 582 118.1
A 12 189 39920 333.16 592 582 118.1
A 15 223 19648 161.47 592 582 118.1
B 0 229 96650 850.2 592 576 113.0
B 4 171 73007 640.97 592 576 113.0
B 15 35 34203 297.58 592 576 113.0
C 15 214 220649 1597.8 584 587 137.7
C 0 10 31125 221.73 584 587 137.7
C 3 233 20425 144.04 584 587 137.7
D 10 199 211507 1494.21 578 560 141.2
D 13 249 119291 841.01 578 560 141.2
D 12 233 103291 727.68 578 560 141.2

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