ASTROSAT CZTI

Data Quality Report

Orbit 04499

Creation date: 2024-06-27T14:42:58.535779
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_083T03_9000000566_04499cztM0_level2.evt modeM0/AS1G05_083T03_9000000566_04499cztM0_level2_quad_clean.evt
Size (bytes)232,911,36033,454,080
Size222.1 MB 31.9 MB
Events in quadrant A1,771,209204,496
Events in quadrant B1,987,241196,902
Events in quadrant C1,523,565202,335
Events in quadrant D1,566,529195,230

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071452
B077821
C064041
D066761

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2993130.434347%
B29931334.443702%
C2993150.501169%
D2993280.935516%

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 4213 2994 0 0 0.00% 0.00%
B 4213 2994 66 66 1.57% 2.20%
C 4213 2994 6 6 0.14% 0.20%
D 4213 2994 19 19 0.45% 0.63%

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 0 31 198830 2584.73 376 370 76.8
A 0 13 95464 1238.5 376 370 76.8
A 7 16 14830 188.33 376 370 76.8
B 10 16 492331 6778.52 374 365 72.6
B 4 48 19519 263.91 374 365 72.6
B 15 204 19312 261.06 374 365 72.6
C 9 247 92168 1066.48 366 368 86.1
C 13 61 2966 30.18 366 368 86.1
C 12 4 1335 11.23 366 368 86.1
D 13 235 145443 1662.2 362 352 87.3
D 2 136 19367 217.84 362 352 87.3
D 10 40 16041 179.74 362 352 87.3

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