ASTROSAT CZTI

Data Quality Report

Orbit 26070

Creation date: 2024-06-27T19:24:28.773119
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_142T01_9000003766_26070cztM0_level2.evt modeM0/AS1A09_142T01_9000003766_26070cztM0_level2_quad_clean.evt
Size (bytes)456,154,560124,202,880
Size435.0 MB 118.4 MB
Events in quadrant A3,316,863857,768
Events in quadrant B3,391,964857,386
Events in quadrant C3,244,869799,229
Events in quadrant D3,438,942813,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136290
B0138110
C0132730
D0139060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62151111.786002%
B62151181.898632%
C62161262.027027%
D6215971.560740%

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 7545 6215 0 0 0.00% 0.00%
B 7545 6215 0 0 0.00% 0.00%
C 7546 6216 0 0 0.00% 0.00%
D 7545 6215 12 12 0.16% 0.19%

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 13 254 11991 66.46 857 842 167.8
A 0 226 7584 40.19 857 842 167.8
A 6 16 7404 39.11 857 842 167.8
B 5 172 57885 364.56 837 820 156.5
B 0 190 50162 315.23 837 820 156.5
B 12 111 17768 108.27 837 820 156.5
C 14 238 131666 718.84 796 802 182.0
C 13 61 5600 26.35 796 802 182.0
C 1 16 4232 18.84 796 802 182.0
D 1 52 154813 760.25 827 807 202.6
D 12 233 89837 439.5 827 807 202.6
D 8 195 34338 165.53 827 807 202.6

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