ASTROSAT CZTI

Data Quality Report

Orbit 12104

Creation date: 2024-06-27T16:22:28.013882
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/AS1G08_065T01_9000001796_12104cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12104cztM0_level2_quad_clean.evt
Size (bytes)625,196,160106,560,000
Size596.2 MB 101.6 MB
Events in quadrant A4,513,430684,230
Events in quadrant B4,738,982679,199
Events in quadrant C3,542,549689,762
Events in quadrant D5,617,925638,797

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187233
B0193682
C0159962
D0218332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76893534.590974%
B76894335.631422%
C7689430.559240%
D76895407.023020%

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 8690 7693 159 159 1.83% 2.07%
B 8690 7691 151 151 1.74% 1.96%
C 8690 7693 0 0 0.00% 0.00%
D 8690 7693 448 448 5.16% 5.82%

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 63 560987 2995.46 913 893 187.0
A 1 162 151202 803.87 913 893 187.0
A 13 248 105471 559.3 913 893 187.0
B 4 239 844962 4884.94 906 881 172.8
B 11 51 139307 801.11 906 881 172.8
B 0 85 94408 541.27 906 881 172.8
C 15 208 9495 41.08 904 907 209.1
C 13 61 6649 27.47 904 907 209.1
C 14 234 3982 14.71 904 907 209.1
D 1 52 808317 3864.52 867 841 208.9
D 14 34 798118 3815.71 867 841 208.9
D 8 195 272745 1301.31 867 841 208.9

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