Using your string - you can do something like this:
or instead of join - you could also directly access the values:
[
{
"id": "b58dd0fccc7f187b",
"type": "switch",
"z": "5b209b6d5006b849",
"name": "",
"property": "parts.index",
"propertyType": "msg",
"rules": [
{
"t": "eq",
"v": "0",
"vt": "num"
},
{
"t": "gt",
"v": "0",
"vt": "num"
}
],
"checkall": "true",
"repair": true,
"outputs": 2,
"x": 470,
"y": 500,
"wires": [
[
"695bea8f95690585"
],
[
"bcca667b44d996d5"
]
]
},
{
"id": "5ef6e01d5e727c8d",
"type": "inject",
"z": "5b209b6d5006b849",
"name": "",
"props": [
{
"p": "payload"
}
],
"repeat": "",
"crontab": "",
"once": false,
"onceDelay": 0.1,
"topic": "",
"payload": "2022/06/04 04:49:19,1,0.066,-0.16,2,22.2883,21.8716,3,1.238,21.0,0.498,101.95,4,1818.99,21.0,0.0",
"payloadType": "str",
"x": 170,
"y": 500,
"wires": [
[
"4b7c3669c59df552"
]
]
},
{
"id": "4b7c3669c59df552",
"type": "split",
"z": "5b209b6d5006b849",
"name": "",
"splt": ",",
"spltType": "str",
"arraySplt": 1,
"arraySpltType": "len",
"stream": false,
"addname": "",
"x": 330,
"y": 500,
"wires": [
[
"b58dd0fccc7f187b"
]
]
},
{
"id": "bcca667b44d996d5",
"type": "change",
"z": "5b209b6d5006b849",
"name": "",
"rules": [
{
"t": "set",
"p": "payload",
"pt": "msg",
"to": "$number($trim(payload))\t",
"tot": "jsonata"
},
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "values",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 670,
"y": 520,
"wires": [
[
"28980d0cccce3e3a"
]
]
},
{
"id": "8fe60570c7c237ca",
"type": "debug",
"z": "5b209b6d5006b849",
"name": "",
"active": true,
"tosidebar": true,
"console": false,
"tostatus": false,
"complete": "true",
"targetType": "full",
"statusVal": "",
"statusType": "auto",
"x": 1130,
"y": 480,
"wires": []
},
{
"id": "28980d0cccce3e3a",
"type": "join",
"z": "5b209b6d5006b849",
"name": "",
"mode": "custom",
"build": "array",
"property": "payload",
"propertyType": "msg",
"key": "topic",
"joiner": "\\n",
"joinerType": "str",
"accumulate": false,
"timeout": "1",
"count": "",
"reduceRight": false,
"reduceExp": "",
"reduceInit": "",
"reduceInitType": "",
"reduceFixup": "",
"x": 850,
"y": 520,
"wires": [
[
"6d6cd0183b92c966"
]
]
},
{
"id": "695bea8f95690585",
"type": "change",
"z": "5b209b6d5006b849",
"name": "",
"rules": [
{
"t": "set",
"p": "topic",
"pt": "msg",
"to": "date",
"tot": "str"
}
],
"action": "",
"property": "",
"from": "",
"to": "",
"reg": false,
"x": 660,
"y": 480,
"wires": [
[
"6d6cd0183b92c966"
]
]
},
{
"id": "6d6cd0183b92c966",
"type": "join",
"z": "5b209b6d5006b849",
"name": "",
"mode": "custom",
"build": "object",
"property": "payload",
"propertyType": "msg",
"key": "topic",
"joiner": "\\n",
"joinerType": "str",
"accumulate": true,
"timeout": "",
"count": "2",
"reduceRight": false,
"reduceExp": "",
"reduceInit": "",
"reduceInitType": "num",
"reduceFixup": "",
"x": 990,
"y": 480,
"wires": [
[
"8fe60570c7c237ca"
]
]
}
]