ASTROSAT CZTI

Data Quality Report

Orbit 11153

Creation date: 2024-06-27T16:09:11.163282
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/AS1A04_145T03_9000001624_11153cztM0_level2.evt modeM0/AS1A04_145T03_9000001624_11153cztM0_level2_quad_clean.evt
Size (bytes)552,098,88074,894,400
Size526.5 MB 71.4 MB
Events in quadrant A4,650,350467,813
Events in quadrant B4,258,303468,489
Events in quadrant C2,866,479472,088
Events in quadrant D4,532,988434,370

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179341
B0166571
C0127641
D0175451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60755188.526749%
B60755258.641975%
C60752213.637860%
D60755378.839506%

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 6165 6076 152 152 2.47% 2.50%
B 6165 6076 187 187 3.03% 3.08%
C 6165 6076 0 0 0.00% 0.00%
D 6165 6076 249 249 4.04% 4.10%

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 1213156 7910.17 739 723 153.3
A 14 238 255674 1663.35 739 723 153.3
A 0 23 192368 1250.33 739 723 153.3
B 4 239 1134745 7954.34 729 711 142.6
B 15 204 112037 780.86 729 711 142.6
B 4 80 52093 360.4 729 711 142.6
C 8 128 9032 48.38 728 729 171.6
C 14 67 8444 44.95 728 729 171.6
C 8 112 5709 29.01 728 729 171.6
D 13 152 649066 3715.24 713 690 174.5
D 10 253 431163 2466.64 713 690 174.5
D 1 52 331742 1896.95 713 690 174.5

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