ASTROSAT CZTI

Data Quality Report

Orbit 30533

Creation date: 2024-06-27T20:16:39.088287
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/AS1A10_053T15_9000004392_30533cztM0_level2.evt modeM0/AS1A10_053T15_9000004392_30533cztM0_level2_quad_clean.evt
Size (bytes)488,923,20073,497,600
Size466.3 MB 70.1 MB
Events in quadrant A2,831,634465,013
Events in quadrant B4,707,815462,154
Events in quadrant C2,909,523445,354
Events in quadrant D3,954,793437,697

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122231
B0183851
C0123411
D0155831

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5945751.261564%
B59451963.296888%
C59461442.421796%
D59463045.112681%

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 6095 5946 1 1 0.02% 0.02%
B 6095 5946 23 23 0.38% 0.39%
C 6096 5947 1 1 0.02% 0.02%
D 6096 5947 194 194 3.18% 3.26%

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 8 192 12945 82.85 728 713 147.6
A 13 254 10823 68.48 728 713 147.6
A 15 192 10385 65.51 728 713 147.6
B 6 159 1695806 12289.47 714 697 137.9
B 6 36 146380 1056.2 714 697 137.9
B 0 229 26063 183.9 714 697 137.9
C 14 238 132530 809.39 689 692 162.9
C 10 22 35490 213.63 689 692 162.9
C 14 254 30169 180.97 689 692 162.9
D 1 52 681002 4099.55 693 674 166.0
D 8 195 294922 1773.09 693 674 166.0
D 13 104 248759 1494.92 693 674 166.0

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