ASTROSAT CZTI

Data Quality Report

Orbit 47135

Creation date: 2024-06-27T23:32:07.208065
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/AS1C09_003T01_9000006298_47135cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47135cztM0_level2_quad_clean.evt
Size (bytes)944,904,960194,267,520
Size901.1 MB 185.3 MB
Events in quadrant A12,395,7671,311,883
Events in quadrant B6,330,9701,340,016
Events in quadrant C5,823,8311,279,313
Events in quadrant D9,455,1871,082,104

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0452642
B0273682
C0267582
D0370332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02540
B02540
C02540
D02540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125634153.303351%
B125631431.138263%
C125641130.899395%
D1256412019.559058%

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 13583 12565 81 81 0.60% 0.64%
B 13583 12565 46 46 0.34% 0.37%
C 13584 12566 68 68 0.50% 0.54%
D 13584 12566 989 989 7.28% 7.87%

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 10 83 6868393 24306.19 1364 1334 282.5
A 0 247 105088 367.24 1364 1334 282.5
A 10 255 77382 269.17 1364 1334 282.5
B 5 255 179868 665.86 1366 1322 268.1
B 4 21 163777 605.85 1366 1322 268.1
B 0 200 154389 570.84 1366 1322 268.1
C 15 208 376974 1192.97 1341 1346 314.9
C 14 254 139353 438.3 1341 1346 314.9
C 6 247 32908 100.24 1341 1346 314.9
D 12 3 1439310 4425.73 1292 1250 324.9
D 2 249 1233450 3792.18 1292 1250 324.9
D 1 47 433657 1330.76 1292 1250 324.9

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