ASTROSAT CZTI

Data Quality Report

Orbit 07081

Creation date: 2024-06-27T15:15:19.326823
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_164T01_9000000968_07081cztM0_level2.evt modeM0/AS1G06_164T01_9000000968_07081cztM0_level2_quad_clean.evt
Size (bytes)337,976,64077,912,640
Size322.3 MB 74.3 MB
Events in quadrant A2,307,280513,697
Events in quadrant B2,621,672523,177
Events in quadrant C2,221,109496,811
Events in quadrant D2,747,416477,643

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100882
B0109211
C0100871
D0113211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4961230.463616%
B4961490.987704%
C4961150.302358%
D4961490.987704%

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 6260 4961 0 0 0.00% 0.00%
B 6260 4961 6 6 0.10% 0.12%
C 6260 4961 0 0 0.00% 0.00%
D 6260 4961 29 29 0.46% 0.58%

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 15 8616 66.55 595 584 120.7
A 13 14 7326 55.86 595 584 120.7
A 0 226 5850 43.63 595 584 120.7
B 0 219 245209 2169.4 597 584 112.8
B 0 214 54816 480.94 597 584 112.8
B 12 111 10728 89.96 597 584 112.8
C 1 3 4569 30.75 567 568 130.1
C 13 61 4518 30.36 567 568 130.1
C 4 254 3442 22.09 567 568 130.1
D 1 83 311043 2244.2 566 547 138.4
D 8 195 147124 1059.43 566 547 138.4
D 2 136 61797 442.7 566 547 138.4

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