ASTROSAT CZTI

Data Quality Report

Orbit 04413

Creation date: 2024-06-27T14:41:37.600144
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/AS1G05_230T04_9000000550_04413cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04413cztM0_level2_quad_clean.evt
Size (bytes)476,513,28083,062,080
Size454.4 MB 79.2 MB
Events in quadrant A2,913,596524,523
Events in quadrant B3,111,445526,512
Events in quadrant C2,965,201528,294
Events in quadrant D5,012,626495,619

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128762
B0133211
C0130171
D0192871

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6317370.585721%
B6317480.759854%
C6317290.459079%
D63173315.239829%

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 7572 6318 1 1 0.01% 0.02%
B 7572 6318 1 1 0.01% 0.02%
C 7572 6318 4 4 0.05% 0.06%
D 7572 6318 362 362 4.78% 5.73%

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 8764 52.85 753 737 151.9
A 12 194 7613 45.27 753 737 151.9
A 0 226 7532 44.74 753 737 151.9
B 14 167 58380 402.73 763 746 143.1
B 10 16 42719 293.3 763 746 143.1
B 15 204 25918 175.9 763 746 143.1
C 14 48 38024 219.88 742 745 169.5
C 9 247 21890 124.72 742 745 169.5
C 13 61 6129 31.76 742 745 169.5
D 13 114 2081033 11935.72 729 708 174.3
D 13 239 77504 440.61 729 708 174.3
D 2 206 17743 97.74 729 708 174.3

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