ASTROSAT CZTI

Data Quality Report

Orbit 06852

Creation date: 2024-06-27T15:12:23.826911
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_135T03_9000000944_06852cztM0_level2.evt modeM0/AS1G06_135T03_9000000944_06852cztM0_level2_quad_clean.evt
Size (bytes)461,491,20087,537,600
Size440.1 MB 83.5 MB
Events in quadrant A3,119,575555,177
Events in quadrant B3,162,992565,571
Events in quadrant C3,064,134555,110
Events in quadrant D4,186,662520,408

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137103
B0139913
C0137693
D0170023

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6517981.503759%
B65171552.378395%
C6517971.488415%
D65172483.805432%

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 7042 6522 0 0 0.00% 0.00%
B 7042 6522 6 6 0.09% 0.09%
C 7042 6522 17 17 0.24% 0.26%
D 7042 6522 116 116 1.65% 1.78%

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 15 239 106134 665.94 768 749 158.2
A 8 15 47368 294.59 768 749 158.2
A 3 1 8332 47.92 768 749 158.2
B 0 228 110611 740.32 772 751 148.4
B 12 111 15318 98.16 772 751 148.4
B 4 48 14544 92.95 772 751 148.4
C 10 22 64524 367.11 747 749 173.7
C 9 247 49057 278.08 747 749 173.7
C 8 128 14915 81.54 747 749 173.7
D 2 216 457318 2507.44 732 707 182.1
D 14 34 349091 1913.12 732 707 182.1
D 8 195 190342 1041.36 732 707 182.1

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