ASTROSAT CZTI

Data Quality Report

Orbit 05797

Creation date: 2024-06-27T14:59:15.931917
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/AS1A02_106T01_9000000744_05797cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05797cztM0_level2_quad_clean.evt
Size (bytes)873,869,760149,031,360
Size833.4 MB 142.1 MB
Events in quadrant A5,757,860912,118
Events in quadrant B6,120,646926,882
Events in quadrant C5,729,226916,936
Events in quadrant D7,978,996861,338

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02653855
B02708642
C02646742
D03328643

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A129621180.910353%
B129681250.963911%
C12966990.763535%
D129758336.420039%

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 14051 12988 1 1 0.01% 0.01%
B 14051 12988 16 16 0.11% 0.12%
C 14051 12988 0 0 0.00% 0.00%
D 14051 12987 593 593 4.22% 4.57%

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 0 226 14576 43.28 1485 1451 303.3
A 15 79 14485 42.98 1485 1451 303.3
A 12 194 14381 42.63 1485 1451 303.3
B 4 81 104781 358.78 1503 1465 288.0
B 15 204 74208 252.61 1503 1465 288.0
B 4 239 44148 148.22 1503 1465 288.0
C 8 128 15449 41.48 1459 1463 337.1
C 13 61 11606 30.09 1459 1463 337.1
C 8 112 8219 20.04 1459 1463 337.1
D 7 203 1955972 5615.85 1407 1363 348.1
D 11 241 375895 1076.08 1407 1363 348.1
D 12 110 124089 352.61 1407 1363 348.1

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