ASTROSAT CZTI

Data Quality Report

Orbit 19031

Creation date: 2024-06-27T17:58:18.013269
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/AS1A05_046T01_9000002834_19031cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19031cztM0_level2_quad_clean.evt
Size (bytes)524,018,88096,353,280
Size499.7 MB 91.9 MB
Events in quadrant A3,122,797630,202
Events in quadrant B3,460,518648,335
Events in quadrant C3,206,130624,995
Events in quadrant D5,651,090572,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133403
B0144152
C0134382
D0211242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6330310.489731%
B63301251.974724%
C6330651.026856%
D633075311.895735%

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 7475 6331 3 3 0.04% 0.05%
B 7475 6331 32 32 0.43% 0.51%
C 7475 6331 0 0 0.00% 0.00%
D 7475 6331 473 473 6.33% 7.47%

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 14 235 56899 348.61 796 780 161.0
A 0 226 6944 38.29 796 780 161.0
A 13 254 6688 36.7 796 780 161.0
B 3 112 157078 1014.08 801 780 154.1
B 7 220 82751 531.84 801 780 154.1
B 4 171 31772 201.08 801 780 154.1
C 14 238 121374 666.14 773 778 181.0
C 3 233 69197 377.93 773 778 181.0
C 13 61 5429 25.69 773 778 181.0
D 7 238 1581806 8766.54 742 721 180.4
D 1 52 861979 4775.36 742 721 180.4
D 9 68 323707 1790.84 742 721 180.4

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