ASTROSAT CZTI

Data Quality Report

Orbit 07549

Creation date: 2024-06-27T15:21:24.677898
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/AS1G06_164T01_9000001040_07549cztM0_level2.evt modeM0/AS1G06_164T01_9000001040_07549cztM0_level2_quad_clean.evt
Size (bytes)186,929,28045,328,320
Size178.3 MB 43.2 MB
Events in quadrant A1,313,648297,206
Events in quadrant B1,342,637306,095
Events in quadrant C1,332,857295,551
Events in quadrant D1,488,173282,090

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055202
B056261
C056511
D062031

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2678220.821509%
B2678220.821509%
C2678230.858850%
D2678391.456311%

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 3143 2679 0 0 0.00% 0.00%
B 3143 2679 0 0 0.00% 0.00%
C 3143 2679 12 12 0.38% 0.45%
D 3143 2679 20 20 0.64% 0.75%

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 14 6906 91.4 338 330 71.9
A 15 239 4980 64.63 338 330 71.9
A 0 226 3251 40.6 338 330 71.9
B 0 214 15263 224.05 337 328 66.7
B 0 219 12933 189.1 337 328 66.7
B 0 229 6095 86.52 337 328 66.7
C 9 68 52647 676.72 326 327 77.3
C 13 61 2491 27.99 326 327 77.3
C 1 16 1797 19.01 326 327 77.3
D 2 136 69586 845.41 329 317 81.9
D 2 14 47914 580.91 329 317 81.9
D 13 238 41315 500.37 329 317 81.9

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