ASTROSAT CZTI

Data Quality Report

Orbit 06704

Creation date: 2024-06-27T15:10:36.666306
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_135T02_9000000918_06704cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06704cztM0_level2_quad_clean.evt
Size (bytes)635,443,20093,657,600
Size606.0 MB 89.3 MB
Events in quadrant A6,949,179508,142
Events in quadrant B3,292,520622,727
Events in quadrant C3,141,033616,483
Events in quadrant D5,369,703583,303

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259803
B0150692
C0149002
D0211102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7252156421.566464%
B7252710.979040%
C7252380.523993%
D72525938.177055%

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 7962 7253 1327 1327 16.67% 18.30%
B 7962 7253 3 3 0.04% 0.04%
C 7962 7253 2 2 0.03% 0.03%
D 7962 7253 423 423 5.31% 5.83%

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 14 111 4172032 29421.13 699 682 141.8
A 15 234 44981 312.44 699 682 141.8
A 8 15 16510 111.63 699 682 141.8
B 11 51 24459 147.96 827 807 159.9
B 0 214 24006 145.13 827 807 159.9
B 0 219 22968 138.63 827 807 159.9
C 9 247 22408 118.35 793 796 182.6
C 12 4 15837 82.36 793 796 182.6
C 13 61 6342 30.37 793 796 182.6
D 2 33 1554677 8390.54 764 739 185.2
D 8 195 298769 1609.22 764 739 185.2
D 2 136 241490 1299.94 764 739 185.2

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