ASTROSAT CZTI

Data Quality Report

Orbit 25405

Creation date: 2024-06-27T19:17:16.879705
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/AS1A09_057T04_9000003712_25405cztM0_level2.evt modeM0/AS1A09_057T04_9000003712_25405cztM0_level2_quad_clean.evt
Size (bytes)503,058,24075,746,880
Size479.8 MB 72.2 MB
Events in quadrant A3,299,479480,771
Events in quadrant B3,330,404483,101
Events in quadrant C3,284,453453,216
Events in quadrant D4,892,247435,528

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133240
B0134340
C0133460
D0186830

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6318861.361190%
B63191021.614179%
C63191081.709131%
D63194256.725748%

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 7478 6318 0 0 0.00% 0.00%
B 7479 6319 0 0 0.00% 0.00%
C 7479 6320 0 0 0.00% 0.00%
D 7479 6320 301 301 4.02% 4.76%

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 15 173 22175 127.54 847 831 167.3
A 6 16 12277 68.4 847 831 167.3
A 13 254 8676 46.88 847 831 167.3
B 0 190 34677 214.89 828 807 157.6
B 3 112 24526 150.49 828 807 157.6
B 0 229 23541 144.24 828 807 157.6
C 14 238 129635 702.44 794 802 183.4
C 7 247 49731 266.78 794 802 183.4
C 3 233 7390 35.92 794 802 183.4
D 1 52 684838 3577.04 802 781 191.2
D 7 238 649544 3392.48 802 781 191.2
D 8 195 407455 2126.56 802 781 191.2

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