ASTROSAT CZTI

Data Quality Report

Orbit 10810

Creation date: 2024-06-27T16:04:41.618755
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/AS1G07_003T02_9000001564_10810cztM0_level2.evt modeM0/AS1G07_003T02_9000001564_10810cztM0_level2_quad_clean.evt
Size (bytes)1,075,599,360143,899,200
Size1.0 GB 137.2 MB
Events in quadrant A9,986,419870,498
Events in quadrant B8,201,327919,471
Events in quadrant C5,333,343939,586
Events in quadrant D8,300,754855,447

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370347
B0316332
C0235432
D0320582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11160141712.697133%
B111619118.162351%
C111611401.254368%
D111618347.472449%

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 13411 11161 953 953 7.11% 8.54%
B 13411 11161 487 487 3.63% 4.36%
C 13411 11162 19 19 0.14% 0.17%
D 13411 11161 644 644 4.80% 5.77%

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 8 5 4938834 18888.43 1299 1274 261.4
A 15 174 19395 69.32 1299 1274 261.4
A 4 2 13762 47.77 1299 1274 261.4
B 4 239 2648600 10470.47 1336 1303 252.8
B 15 204 165899 651.0 1336 1303 252.8
B 0 214 87023 339.04 1336 1303 252.8
C 14 234 161063 525.55 1326 1332 303.9
C 13 61 9754 27.71 1326 1332 303.9
C 8 222 6189 15.98 1326 1332 303.9
D 1 52 1099252 3569.77 1289 1255 307.6
D 12 233 582476 1889.64 1289 1255 307.6
D 2 14 438511 1421.59 1289 1255 307.6

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