ASTROSAT CZTI

Data Quality Report

Orbit 20170114_G06_029T01_9000000964_level2

Creation date: 2025-11-09T03:55:23.203565
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_029T01_9000000964cztM0_level2.fits modeM0/AS1G06_029T01_9000000964cztM0_level2_quad_clean.evt
Size (bytes)1,252,676,1601,355,302,080
Size1.2 GB 1.3 GB
Events in quadrant A7,629,4728,408,808
Events in quadrant B7,379,1028,397,463
Events in quadrant C7,472,3068,005,317
Events in quadrant D6,382,4167,165,464

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02753200
B02877020
C02772580
D03210520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026960
B026960
C026960
D026960

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13241517961.356342%
B13241523351.763395%
C13241516201.223426%
D13241539743.001171%

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 154500 132413 0 0 0.00% 0.00%
B 154500 132403 0 0 0.00% 0.00%
C 154500 132406 0 0 0.00% 0.00%
D 154500 132385 0 0 0.00% 0.00%

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 14 188 7753 11.79 1979 1846 500.9
A 0 29 7496 11.28 1979 1846 500.9
A 14 204 6615 9.52 1979 1846 500.9
B 2 9 6347 11.54 1946 1852 389.6
B 12 226 5093 8.32 1946 1852 389.6
B 14 254 4994 8.07 1946 1852 389.6
C 1 80 5903 7.8 1972 1830 522.5
C 1 81 5834 7.66 1972 1830 522.5
C 12 241 5187 6.42 1972 1830 522.5
D 3 14 4840 6.54 1819 1653 487.4
D 6 231 4661 6.17 1819 1653 487.4
D 11 82 4603 6.05 1819 1653 487.4

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