ASTROSAT CZTI

Data Quality Report

Orbit 47127

Creation date: 2024-06-27T23:32:01.740209
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_47127cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47127cztM0_level2_quad_clean.evt
Size (bytes)756,576,000172,062,720
Size721.5 MB 164.1 MB
Events in quadrant A10,314,6601,157,156
Events in quadrant B6,356,8841,182,010
Events in quadrant C4,724,2541,126,167
Events in quadrant D5,813,5711,031,236

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378832
B0256862
C0218032
D0249682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102973263.165971%
B102983213.117110%
C10298740.718586%
D102982292.223733%

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 12722 10299 109 109 0.86% 1.06%
B 12723 10300 163 163 1.28% 1.58%
C 12723 10300 60 60 0.47% 0.58%
D 12723 10300 156 156 1.23% 1.51%

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 5637203 23624.52 1157 1132 238.6
A 0 247 141612 588.85 1157 1132 238.6
A 9 191 23325 93.03 1157 1132 238.6
B 5 32 565744 2509.34 1148 1112 225.0
B 15 201 532860 2363.2 1148 1112 225.0
B 4 21 330890 1465.6 1148 1112 225.0
C 14 254 182746 703.6 1115 1117 258.1
C 15 208 159051 611.81 1115 1117 258.1
C 1 3 11180 38.98 1115 1117 258.1
D 2 249 420920 1518.89 1117 1079 276.4
D 12 233 372919 1345.23 1117 1079 276.4
D 13 171 154423 554.76 1117 1079 276.4

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